diff --git a/ppoprf/Cargo.toml b/ppoprf/Cargo.toml
index 1fa488a1..13ee0b1a 100644
--- a/ppoprf/Cargo.toml
+++ b/ppoprf/Cargo.toml
@@ -22,15 +22,15 @@ zeroize = { version = "1.5.5", features = [ "derive" ] }
 rand_core = "0.6.4"
 
 [dev-dependencies]
-criterion = "0.5.1"
-env_logger = "0.11.3"
-log = "0.4.21"
-reqwest = { version = "0.12.4", features = [ "blocking", "json" ] }
-dotenvy = "0.15.7"
-tokio = { version = "1.37.0", features = ["macros", "rt-multi-thread", "time"] }
-warp = "0.3.7"
-insta = "1.46"
-postcard = { version = "1.1", default_features = false, features = ["use-std"] }
+criterion = "=0.5.1"
+env_logger = "=0.11.10"
+log = "=0.4.32"
+reqwest = { version = "=0.12.28", features = [ "blocking", "json" ] }
+dotenvy = "=0.15.7"
+tokio = { version = "=1.52.3", features = ["macros", "rt-multi-thread", "time"] }
+warp = "=0.3.7"
+insta = "=1.48.0"
+postcard = { version = "=1.1.3", default_features = false, features = ["use-std"] }
 
 [[bench]]
 name = "bench"
diff --git a/sharks/Cargo.toml b/sharks/Cargo.toml
index 59532112..3747a55f 100644
--- a/sharks/Cargo.toml
+++ b/sharks/Cargo.toml
@@ -25,8 +25,8 @@ bitvec = { version = "1.0.1", default-features = false }
 byteorder = { version = "1", default-features = false }
 
 [dev-dependencies]
-criterion = "0.5"
-rand_chacha = "0.3"
+criterion = "=0.5.1"
+rand_chacha = "=0.3.1"
 
 [[bench]]
 name = "benchmarks"
diff --git a/star-wasm/Cargo.toml b/star-wasm/Cargo.toml
index efa7360d..dbbc3c1b 100644
--- a/star-wasm/Cargo.toml
+++ b/star-wasm/Cargo.toml
@@ -23,4 +23,4 @@ base64 = "0.22"
 console_error_panic_hook = "0.1.7"
 
 [dev-dependencies]
-wasm-bindgen-test = "0.3"
+wasm-bindgen-test = "=0.3.75"
diff --git a/star/Cargo.toml b/star/Cargo.toml
index a59e822a..b16c9c34 100644
--- a/star/Cargo.toml
+++ b/star/Cargo.toml
@@ -19,9 +19,9 @@ rand_core = "0.6.4"
 zeroize = "1.5.5"
 
 [dev-dependencies]
-criterion = "0.5.1"
+criterion = "=0.5.1"
 star-test-utils = { path = "./test-utils" }
-rand = { version = "0.8.5", features = [ "std" ] }
+rand = { version = "=0.8.6", features = [ "std" ] }
 
 [features]
 star2 = []