diff --git a/crates/bonsaidb-local/Cargo.toml b/crates/bonsaidb-local/Cargo.toml
index f79ff08499..2b4ab966e7 100644
--- a/crates/bonsaidb-local/Cargo.toml
+++ b/crates/bonsaidb-local/Cargo.toml
@@ -32,7 +32,7 @@ encryption = [
     "bonsaidb-core/encryption",
     "dep:hpke",
     "dep:zeroize",
-    "dep:region",
+    "dep:memsec",
     "dep:chacha20poly1305",
 ]
 compression = ["dep:lz4_flex"]
@@ -68,7 +68,7 @@ byteorder = "1"
 futures = { version = "0.3.19", optional = true }
 chacha20poly1305 = { version = "0.10", optional = true }
 zeroize = { version = "1", optional = true }
-region = { version = "3", optional = true }
+memsec = { version = "0.6.3", optional = true }
 hpke = { version = "0.10", default-features = false, features = [
     "p256",
     "serde_impls",
diff --git a/crates/bonsaidb-server/Cargo.toml b/crates/bonsaidb-server/Cargo.toml
index 54c00b308b..4625862b12 100644
--- a/crates/bonsaidb-server/Cargo.toml
+++ b/crates/bonsaidb-server/Cargo.toml
@@ -71,7 +71,7 @@ pot = "3.0.0"
 fabruic = { version = "0.0.1-dev.6", features = ["dangerous"] }
 cfg-if = "1"
 pem = { version = "3.0.2", optional = true }
-async-acme = { version = "0.3.2", optional = true, features = ["hyper_rustls"] }
+async-acme = { version = "0.4.0", optional = true, features = ["hyper_rustls"] }
 rustls = "0.21.6"
 tokio-rustls = { version = "0.24.1" }
 parking_lot = "0.12.0"
diff --git a/deny.toml b/deny.toml
index e937468ff6..b2cdabc7df 100644
--- a/deny.toml
+++ b/deny.toml
@@ -9,7 +9,6 @@ yanked = "warn"
 notice = "warn"
 ignore = [
     "RUSTSEC-2020-0168", # region -> mach is unmaintained
-    "RUSTSEC-2023-0052", # https://github.com/User65k/generic-async-http-client/pull/2
 ]
 
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