diff --git a/Cargo.lock b/Cargo.lock
index 8db6e878..b846b9ce 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5938,7 +5938,7 @@ checksum = "1e9df38ee2d2c3c5948ea468a8406ff0db0b29ae1ffde1bcf20ef305bcc95c51"
 
 [[package]]
 name = "yellowstone-grpc-client"
-version = "4.0.0"
+version = "4.0.0+solana.2.1.1"
 dependencies = [
  "bytes",
  "futures",
@@ -5951,7 +5951,7 @@ dependencies = [
 
 [[package]]
 name = "yellowstone-grpc-client-simple"
-version = "4.0.0"
+version = "4.0.0+solana.2.1.1"
 dependencies = [
  "anyhow",
  "backoff",
@@ -5976,7 +5976,7 @@ dependencies = [
 
 [[package]]
 name = "yellowstone-grpc-geyser"
-version = "4.0.0"
+version = "4.0.0+solana.2.1.1"
 dependencies = [
  "agave-geyser-plugin-interface",
  "anyhow",
@@ -6014,7 +6014,7 @@ dependencies = [
 
 [[package]]
 name = "yellowstone-grpc-proto"
-version = "4.0.0"
+version = "4.0.0+solana.2.1.1"
 dependencies = [
  "agave-geyser-plugin-interface",
  "anyhow",
diff --git a/Cargo.toml b/Cargo.toml
index 21a6671e..c21b4f7e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,10 +1,10 @@
 [workspace]
 resolver = "2"
 members = [
-    "examples/rust", # 4.0.0
-    "yellowstone-grpc-client", # 4.0.0
-    "yellowstone-grpc-geyser", # 4.0.0
-    "yellowstone-grpc-proto", # 4.0.0
+    "examples/rust", # 4.0.0+solana.2.1.1
+    "yellowstone-grpc-client", # 4.0.0+solana.2.1.1
+    "yellowstone-grpc-geyser", # 4.0.0+solana.2.1.1
+    "yellowstone-grpc-proto", # 4.0.0+solana.2.1.1
 ]
 
 [workspace.package]
@@ -17,7 +17,7 @@ keywords = ["solana"]
 publish = false
 
 [workspace.dependencies]
-agave-geyser-plugin-interface = "~2.1.1"
+agave-geyser-plugin-interface = "=2.1.1"
 anyhow = "1.0.62"
 backoff = "0.4.0"
 base64 = "0.22.1"
@@ -50,11 +50,11 @@ prost_011 = { package = "prost", version = "0.11.9" }
 protobuf-src = "1.1.0"
 serde = "1.0.145"
 serde_json = "1.0.86"
-solana-account-decoder = "~2.1.1"
-solana-logger = "~2.1.1"
-solana-sdk = "~2.1.1"
-solana-storage-proto = "~2.1.1"
-solana-transaction-status = "~2.1.1"
+solana-account-decoder = "=2.1.1"
+solana-logger = "=2.1.1"
+solana-sdk = "=2.1.1"
+solana-storage-proto = "=2.1.1"
+solana-transaction-status = "=2.1.1"
 smallvec = "1.13.2"
 spl-token-2022 = "6.0.0"
 thiserror = "1.0.63"
diff --git a/examples/rust/Cargo.toml b/examples/rust/Cargo.toml
index 61db0f83..8a2ec756 100644
--- a/examples/rust/Cargo.toml
+++ b/examples/rust/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "yellowstone-grpc-client-simple"
-version = "4.0.0"
+version = "4.0.0+solana.2.1.1"
 authors = { workspace = true }
 edition = { workspace = true }
 homepage = { workspace = true }
diff --git a/yellowstone-grpc-client/Cargo.toml b/yellowstone-grpc-client/Cargo.toml
index f8ada6fd..dbe9c420 100644
--- a/yellowstone-grpc-client/Cargo.toml
+++ b/yellowstone-grpc-client/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "yellowstone-grpc-client"
-version = "4.0.0"
+version = "4.0.0+solana.2.1.1"
 authors = { workspace = true }
 edition = { workspace = true }
 description = "Yellowstone gRPC Geyser Simple Client"
diff --git a/yellowstone-grpc-geyser/Cargo.toml b/yellowstone-grpc-geyser/Cargo.toml
index c4d671c5..998fdf64 100644
--- a/yellowstone-grpc-geyser/Cargo.toml
+++ b/yellowstone-grpc-geyser/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "yellowstone-grpc-geyser"
-version = "4.0.0"
+version = "4.0.0+solana.2.1.1"
 authors = { workspace = true }
 edition = { workspace = true }
 description = "Yellowstone gRPC Geyser Plugin"
diff --git a/yellowstone-grpc-proto/Cargo.toml b/yellowstone-grpc-proto/Cargo.toml
index 1d9a3078..c6f82a4b 100644
--- a/yellowstone-grpc-proto/Cargo.toml
+++ b/yellowstone-grpc-proto/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "yellowstone-grpc-proto"
-version = "4.0.0"
+version = "4.0.0+solana.2.1.1"
 authors = { workspace = true }
 edition = { workspace = true }
 description = "Yellowstone gRPC Geyser Protobuf Definitions"