diff --git a/Cargo.toml b/Cargo.toml
index d137e43e..cb67757e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -53,13 +53,13 @@ indexmap = { version = "2.10", features = ["serde"] }
 cookie = "0.18.1"
 
 [dev-dependencies]
-aws-smithy-runtime = { version = "1.12.1", features = ["test-util"] }
-http = "1.4.2"
-mockall = "0.14"
-serial_test = "3.5.0"
-tempfile = "3"
-tokio-test = "0.4"
-wiremock = "0.6.5"
+aws-smithy-runtime = { version = "=1.12.1", features = ["test-util"] }
+http = "=1.4.2"
+mockall = "=0.14.0"
+serial_test = "=3.5.0"
+tempfile = "=3.27.0"
+tokio-test = "=0.4.5"
+wiremock = "=0.6.5"
 
 [package]
 authors = ["Jonathan Morley <morley.jonathan@gmail.com>"]