diff --git a/.github/workflows/provision-pocket-ic-server.sh b/.github/workflows/provision-pocket-ic-server.sh
index 5fd8468a7..04220e582 100755
--- a/.github/workflows/provision-pocket-ic-server.sh
+++ b/.github/workflows/provision-pocket-ic-server.sh
@@ -2,7 +2,7 @@
 
 set -ex
 
-POCKET_IC_SERVER_VERSION=${POCKET_IC_SERVER_VERSION:=4.0.0}
+POCKET_IC_SERVER_VERSION=${POCKET_IC_SERVER_VERSION:=5.0.0}
 POCKET_IC_SERVER_PATH=${POCKET_IC_SERVER_PATH:="${HOME}/bin/pocket-ic-server"}
 
 if [[ $OSTYPE == "linux-gnu"* ]] || [[ $RUNNER_OS == "Linux" ]]
@@ -27,4 +27,4 @@ else
 fi
 
 # Set environment variables.
-echo "POCKET_IC_BIN=${POCKET_IC_SERVER_PATH}" >> "$GITHUB_ENV"
\ No newline at end of file
+echo "POCKET_IC_BIN=${POCKET_IC_SERVER_PATH}" >> "$GITHUB_ENV"
diff --git a/motoko/parallel_calls/Cargo.lock b/motoko/parallel_calls/Cargo.lock
index 1056e154d..c27ccefaf 100644
--- a/motoko/parallel_calls/Cargo.lock
+++ b/motoko/parallel_calls/Cargo.lock
@@ -38,17 +38,6 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
 
-[[package]]
-name = "async-trait"
-version = "0.1.80"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c6fa2087f2753a7da8cc1c0dbfcf89579dd57458e36769de5ac750b4671737ca"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.66",
-]
-
 [[package]]
 name = "atomic-waker"
 version = "1.1.2"
@@ -639,6 +628,16 @@ version = "0.2.155"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "97b3888a4aecf77e811145cadf6eef5901f4782c53886191b2f693f24761847c"
 
+[[package]]
+name = "lock_api"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
+dependencies = [
+ "autocfg",
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.21"
@@ -666,6 +665,16 @@ version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
+[[package]]
+name = "mime_guess"
+version = "2.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7c44f8e672c00fe5308fa235f821cb4198414e1c77935c1ab6948d3fd78550e"
+dependencies = [
+ "mime",
+ "unicase",
+]
+
 [[package]]
 name = "miniz_oxide"
 version = "0.7.3"
@@ -776,6 +785,29 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
+[[package]]
+name = "parking_lot"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
+dependencies = [
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.9.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "windows-targets 0.52.5",
+]
+
 [[package]]
 name = "paste"
 version = "1.0.15"
@@ -822,11 +854,10 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "pocket-ic"
-version = "3.1.0"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9765eeff77b8750cf6258eaeea237b96607cd770aa3d4003f021924192b7e4e"
+checksum = "629f46b7ab8a8d2fee02220ef8e99ae552c7e220117efa1ce0882ff09c8fb038"
 dependencies = [
- "async-trait",
  "base64 0.13.1",
  "candid",
  "hex",
@@ -836,6 +867,8 @@ dependencies = [
  "serde",
  "serde_bytes",
  "serde_json",
+ "sha2",
+ "tokio",
  "tracing",
  "tracing-appender",
  "tracing-subscriber",
@@ -885,6 +918,15 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a908a6e00f1fdd0dfd9c0eb08ce85126f6d8bbda50017e74bc4a4b7d4a926a4"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "regex"
 version = "1.10.4"
@@ -951,6 +993,7 @@ dependencies = [
  "js-sys",
  "log",
  "mime",
+ "mime_guess",
  "once_cell",
  "percent-encoding",
  "pin-project-lite",
@@ -1096,6 +1139,12 @@ dependencies = [
  "syn 2.0.66",
 ]
 
+[[package]]
+name = "scopeguard"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
+
 [[package]]
 name = "security-framework"
 version = "2.11.0"
@@ -1213,6 +1262,15 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.9"
@@ -1378,11 +1436,25 @@ dependencies = [
  "libc",
  "mio",
  "num_cpus",
+ "parking_lot",
  "pin-project-lite",
+ "signal-hook-registry",
  "socket2",
+ "tokio-macros",
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "tokio-macros"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f5ae998a069d4b5aba8ee9dad856af7d520c3699e6159b185c2acd48155d39a"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+]
+
 [[package]]
 name = "tokio-rustls"
 version = "0.25.0"
@@ -1550,6 +1622,15 @@ version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
 
+[[package]]
+name = "unicase"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7d2d4dafb69621809a81864c9c1b864479e1235c0dd4e199924b9742439ed89"
+dependencies = [
+ "version_check",
+]
+
 [[package]]
 name = "unicode-bidi"
 version = "0.3.15"
diff --git a/motoko/parallel_calls/multi_subnet/Cargo.toml b/motoko/parallel_calls/multi_subnet/Cargo.toml
index d4226b788..9753984b3 100644
--- a/motoko/parallel_calls/multi_subnet/Cargo.toml
+++ b/motoko/parallel_calls/multi_subnet/Cargo.toml
@@ -6,5 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-pocket-ic = "3.1.0"
+pocket-ic = "4.0.0"
 candid = "0.10"
diff --git a/rust/guards/Cargo.lock b/rust/guards/Cargo.lock
index f2a4e179f..75c570f50 100644
--- a/rust/guards/Cargo.lock
+++ b/rust/guards/Cargo.lock
@@ -44,17 +44,6 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b34d609dfbaf33d6889b2b7106d3ca345eacad44200913df5ba02bfd31d2ba9"
 
-[[package]]
-name = "async-trait"
-version = "0.1.80"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c6fa2087f2753a7da8cc1c0dbfcf89579dd57458e36769de5ac750b4671737ca"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.60",
-]
-
 [[package]]
 name = "atomic-waker"
 version = "1.1.2"
@@ -690,6 +679,16 @@ version = "0.2.153"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
 
+[[package]]
+name = "lock_api"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
+dependencies = [
+ "autocfg",
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.21"
@@ -717,6 +716,16 @@ version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
+[[package]]
+name = "mime_guess"
+version = "2.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7c44f8e672c00fe5308fa235f821cb4198414e1c77935c1ab6948d3fd78550e"
+dependencies = [
+ "mime",
+ "unicase",
+]
+
 [[package]]
 name = "miniz_oxide"
 version = "0.7.2"
@@ -728,13 +737,14 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.8.11"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4a650543ca06a924e8b371db273b2756685faae30f8487da1b56505a8f78b0c"
+checksum = "80e04d1dcff3aae0704555fe5fee3bcfaf3d1fdf8a7e521d5b9d2b42acb52cec"
 dependencies = [
+ "hermit-abi",
  "libc",
  "wasi",
- "windows-sys 0.48.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -783,16 +793,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "num_cpus"
-version = "1.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4161fcb6d602d4d2081af7c3a45852d875a03dd337a6bfdd6e06407b61342a43"
-dependencies = [
- "hermit-abi",
- "libc",
-]
-
 [[package]]
 name = "object"
 version = "0.32.2"
@@ -820,6 +820,29 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
+[[package]]
+name = "parking_lot"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
+dependencies = [
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.9.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "windows-targets 0.52.5",
+]
+
 [[package]]
 name = "paste"
 version = "1.0.14"
@@ -866,11 +889,10 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "pocket-ic"
-version = "3.1.0"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9765eeff77b8750cf6258eaeea237b96607cd770aa3d4003f021924192b7e4e"
+checksum = "629f46b7ab8a8d2fee02220ef8e99ae552c7e220117efa1ce0882ff09c8fb038"
 dependencies = [
- "async-trait",
  "base64 0.13.1",
  "candid",
  "hex",
@@ -880,6 +902,8 @@ dependencies = [
  "serde",
  "serde_bytes",
  "serde_json",
+ "sha2",
+ "tokio",
  "tracing",
  "tracing-appender",
  "tracing-subscriber",
@@ -929,6 +953,15 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a908a6e00f1fdd0dfd9c0eb08ce85126f6d8bbda50017e74bc4a4b7d4a926a4"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "regex"
 version = "1.10.4"
@@ -995,6 +1028,7 @@ dependencies = [
  "js-sys",
  "log",
  "mime",
+ "mime_guess",
  "once_cell",
  "percent-encoding",
  "pin-project-lite",
@@ -1171,9 +1205,9 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.198"
+version = "1.0.209"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9846a40c979031340571da2545a4e5b7c4163bdae79b301d5f86d03979451fcc"
+checksum = "99fce0ffe7310761ca6bf9faf5115afbc19688edd00171d81b1bb1b116c63e09"
 dependencies = [
  "serde_derive",
 ]
@@ -1189,9 +1223,9 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.198"
+version = "1.0.209"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e88edab869b01783ba905e7d0153f9fc1a6505a96e4ad3018011eedb838566d9"
+checksum = "a5831b979fd7b5439637af1752d535ff49f4860c0f341d1baeb6faf0f4242170"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1275,6 +1309,15 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.9"
@@ -1431,18 +1474,31 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.37.0"
+version = "1.40.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1adbebffeca75fcfd058afa480fb6c0b81e165a0323f9c9d39c9697e37c46787"
+checksum = "e2b070231665d27ad9ec9b8df639893f46727666c6767db40317fbe920a5d998"
 dependencies = [
  "backtrace",
  "bytes",
  "libc",
  "mio",
- "num_cpus",
+ "parking_lot",
  "pin-project-lite",
+ "signal-hook-registry",
  "socket2",
- "windows-sys 0.48.0",
+ "tokio-macros",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "tokio-macros"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.60",
 ]
 
 [[package]]
@@ -1613,6 +1669,15 @@ version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
 
+[[package]]
+name = "unicase"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7d2d4dafb69621809a81864c9c1b864479e1235c0dd4e199924b9742439ed89"
+dependencies = [
+ "version_check",
+]
+
 [[package]]
 name = "unicode-bidi"
 version = "0.3.15"
diff --git a/rust/guards/Cargo.toml b/rust/guards/Cargo.toml
index 836e10843..e3f421473 100644
--- a/rust/guards/Cargo.toml
+++ b/rust/guards/Cargo.toml
@@ -14,4 +14,4 @@ serde = "1.0"
 
 [dev-dependencies]
 assert_matches = "1.5.0"
-pocket-ic = "3.1.0"
+pocket-ic = "4.0.0"
diff --git a/rust/parallel_calls/Cargo.lock b/rust/parallel_calls/Cargo.lock
index 9e240ce83..97840662a 100644
--- a/rust/parallel_calls/Cargo.lock
+++ b/rust/parallel_calls/Cargo.lock
@@ -38,17 +38,6 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
 
-[[package]]
-name = "async-trait"
-version = "0.1.80"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c6fa2087f2753a7da8cc1c0dbfcf89579dd57458e36769de5ac750b4671737ca"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.66",
-]
-
 [[package]]
 name = "atomic-waker"
 version = "1.1.2"
@@ -716,6 +705,16 @@ version = "0.2.155"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "97b3888a4aecf77e811145cadf6eef5901f4782c53886191b2f693f24761847c"
 
+[[package]]
+name = "lock_api"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
+dependencies = [
+ "autocfg",
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.21"
@@ -743,6 +742,16 @@ version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
+[[package]]
+name = "mime_guess"
+version = "2.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7c44f8e672c00fe5308fa235f821cb4198414e1c77935c1ab6948d3fd78550e"
+dependencies = [
+ "mime",
+ "unicase",
+]
+
 [[package]]
 name = "miniz_oxide"
 version = "0.7.3"
@@ -853,6 +862,29 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
+[[package]]
+name = "parking_lot"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
+dependencies = [
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.9.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "windows-targets 0.52.5",
+]
+
 [[package]]
 name = "paste"
 version = "1.0.15"
@@ -899,11 +931,10 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "pocket-ic"
-version = "3.1.0"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9765eeff77b8750cf6258eaeea237b96607cd770aa3d4003f021924192b7e4e"
+checksum = "629f46b7ab8a8d2fee02220ef8e99ae552c7e220117efa1ce0882ff09c8fb038"
 dependencies = [
- "async-trait",
  "base64 0.13.1",
  "candid",
  "hex",
@@ -913,6 +944,8 @@ dependencies = [
  "serde",
  "serde_bytes",
  "serde_json",
+ "sha2",
+ "tokio",
  "tracing",
  "tracing-appender",
  "tracing-subscriber",
@@ -962,6 +995,15 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a908a6e00f1fdd0dfd9c0eb08ce85126f6d8bbda50017e74bc4a4b7d4a926a4"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "regex"
 version = "1.10.4"
@@ -1028,6 +1070,7 @@ dependencies = [
  "js-sys",
  "log",
  "mime",
+ "mime_guess",
  "once_cell",
  "percent-encoding",
  "pin-project-lite",
@@ -1173,6 +1216,12 @@ dependencies = [
  "syn 2.0.66",
 ]
 
+[[package]]
+name = "scopeguard"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
+
 [[package]]
 name = "security-framework"
 version = "2.11.0"
@@ -1302,6 +1351,15 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.9"
@@ -1467,11 +1525,25 @@ dependencies = [
  "libc",
  "mio",
  "num_cpus",
+ "parking_lot",
  "pin-project-lite",
+ "signal-hook-registry",
  "socket2",
+ "tokio-macros",
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "tokio-macros"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f5ae998a069d4b5aba8ee9dad856af7d520c3699e6159b185c2acd48155d39a"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+]
+
 [[package]]
 name = "tokio-rustls"
 version = "0.25.0"
@@ -1639,6 +1711,15 @@ version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
 
+[[package]]
+name = "unicase"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7d2d4dafb69621809a81864c9c1b864479e1235c0dd4e199924b9742439ed89"
+dependencies = [
+ "version_check",
+]
+
 [[package]]
 name = "unicode-bidi"
 version = "0.3.15"
diff --git a/rust/parallel_calls/src/multi_subnet/Cargo.toml b/rust/parallel_calls/src/multi_subnet/Cargo.toml
index d4226b788..9753984b3 100644
--- a/rust/parallel_calls/src/multi_subnet/Cargo.toml
+++ b/rust/parallel_calls/src/multi_subnet/Cargo.toml
@@ -6,5 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-pocket-ic = "3.1.0"
+pocket-ic = "4.0.0"
 candid = "0.10"
diff --git a/rust/threshold-schnorr/Cargo.lock b/rust/threshold-schnorr/Cargo.lock
index 43a0495c1..1522b4103 100644
--- a/rust/threshold-schnorr/Cargo.lock
+++ b/rust/threshold-schnorr/Cargo.lock
@@ -38,17 +38,6 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
 
-[[package]]
-name = "async-trait"
-version = "0.1.81"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e0c28dcc82d7c8ead5cb13beb15405b57b8546e93215673ff8ca0349a028107"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.48",
-]
-
 [[package]]
 name = "atomic-waker"
 version = "1.1.2"
@@ -861,6 +850,16 @@ version = "0.2.152"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13e3bf6590cbc649f4d1a3eefc9d5d6eb746f5200ffb04e5e142700b8faa56e7"
 
+[[package]]
+name = "lock_api"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
+dependencies = [
+ "autocfg",
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.21"
@@ -888,6 +887,16 @@ version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
+[[package]]
+name = "mime_guess"
+version = "2.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7c44f8e672c00fe5308fa235f821cb4198414e1c77935c1ab6948d3fd78550e"
+dependencies = [
+ "mime",
+ "unicase",
+]
+
 [[package]]
 name = "miniz_oxide"
 version = "0.7.2"
@@ -992,6 +1001,29 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
+[[package]]
+name = "parking_lot"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
+dependencies = [
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.9.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "windows-targets 0.52.5",
+]
+
 [[package]]
 name = "paste"
 version = "1.0.14"
@@ -1048,11 +1080,10 @@ dependencies = [
 
 [[package]]
 name = "pocket-ic"
-version = "3.1.0"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9765eeff77b8750cf6258eaeea237b96607cd770aa3d4003f021924192b7e4e"
+checksum = "629f46b7ab8a8d2fee02220ef8e99ae552c7e220117efa1ce0882ff09c8fb038"
 dependencies = [
- "async-trait",
  "base64 0.13.1",
  "candid",
  "hex",
@@ -1062,6 +1093,8 @@ dependencies = [
  "serde",
  "serde_bytes",
  "serde_json",
+ "sha2",
+ "tokio",
  "tracing",
  "tracing-appender",
  "tracing-subscriber",
@@ -1120,6 +1153,15 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a908a6e00f1fdd0dfd9c0eb08ce85126f6d8bbda50017e74bc4a4b7d4a926a4"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "regex"
 version = "1.10.4"
@@ -1186,6 +1228,7 @@ dependencies = [
  "js-sys",
  "log",
  "mime",
+ "mime_guess",
  "once_cell",
  "percent-encoding",
  "pin-project-lite",
@@ -1367,6 +1410,12 @@ dependencies = [
  "sha2",
 ]
 
+[[package]]
+name = "scopeguard"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
+
 [[package]]
 name = "sec1"
 version = "0.7.3"
@@ -1516,6 +1565,15 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "signature"
 version = "2.0.0"
@@ -1701,11 +1759,25 @@ dependencies = [
  "libc",
  "mio",
  "num_cpus",
+ "parking_lot",
  "pin-project-lite",
+ "signal-hook-registry",
  "socket2",
+ "tokio-macros",
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "tokio-macros"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f5ae998a069d4b5aba8ee9dad856af7d520c3699e6159b185c2acd48155d39a"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.48",
+]
+
 [[package]]
 name = "tokio-rustls"
 version = "0.25.0"
@@ -1874,6 +1946,15 @@ version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
 
+[[package]]
+name = "unicase"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7d2d4dafb69621809a81864c9c1b864479e1235c0dd4e199924b9742439ed89"
+dependencies = [
+ "version_check",
+]
+
 [[package]]
 name = "unicode-bidi"
 version = "0.3.15"
diff --git a/rust/threshold-schnorr/src/schnorr_example_rust/Cargo.toml b/rust/threshold-schnorr/src/schnorr_example_rust/Cargo.toml
index f720950b4..4698d9a1b 100644
--- a/rust/threshold-schnorr/src/schnorr_example_rust/Cargo.toml
+++ b/rust/threshold-schnorr/src/schnorr_example_rust/Cargo.toml
@@ -20,4 +20,4 @@ serde_bytes = "0.11"
 
 [dev-dependencies]
 flate2 = "1.0"
-pocket-ic = "3.1"
+pocket-ic = "4.0.0"