diff --git a/postgres/Cargo.toml b/postgres/Cargo.toml
index be59df101..fa0d31072 100644
--- a/postgres/Cargo.toml
+++ b/postgres/Cargo.toml
@@ -44,4 +44,4 @@ tokio = { version = "1.0", features = ["rt", "time"] }
 log = "0.4"
 
 [dev-dependencies]
-criterion = "0.3"
+criterion = "0.4"
diff --git a/tokio-postgres/Cargo.toml b/tokio-postgres/Cargo.toml
index b3b7cf825..faeaf57a5 100644
--- a/tokio-postgres/Cargo.toml
+++ b/tokio-postgres/Cargo.toml
@@ -60,7 +60,7 @@ tokio-util = { version = "0.7", features = ["codec"] }
 [dev-dependencies]
 tokio = { version = "1.0", features = ["full"] }
 env_logger = "0.9"
-criterion = "0.3"
+criterion = "0.4"
 
 bit-vec-06 = { version = "0.6", package = "bit-vec" }
 chrono-04 = { version = "0.4", package = "chrono", default-features = false }