diff --git a/test-support/tetsy-reference-trie/Cargo.toml b/test-support/tetsy-reference-trie/Cargo.toml
index 655b114..4eca636 100644
--- a/test-support/tetsy-reference-trie/Cargo.toml
+++ b/test-support/tetsy-reference-trie/Cargo.toml
@@ -21,7 +21,7 @@ tetsy-scale-codec = { version = "2.0.1", features = ["derive"] }
 
 [dev-dependencies]
 tetsy-trie-bench = { path = "../tetsy-trie-bench", version = "0.27.0" }
-criterion = "0.3.3"
+criterion = "0.4.0"
 
 [[bench]]
 name = "bench"
diff --git a/test-support/tetsy-trie-bench/Cargo.toml b/test-support/tetsy-trie-bench/Cargo.toml
index 0071768..239f181 100644
--- a/test-support/tetsy-trie-bench/Cargo.toml
+++ b/test-support/tetsy-trie-bench/Cargo.toml
@@ -18,5 +18,5 @@ tetsy-hash-db = { path = "../../tetsy-hash-db" , version = "0.15.3"}
 tetsy-memory-db = { path = "../../tetsy-memory-db", version = "0.26.0" }
 tetsy-trie-root = { path = "../../tetsy-trie-root", version = "0.16.1" }
 tetsy-trie-db = { path = "../../tetsy-trie-db", version = "0.22.3" }
-criterion = "0.3.3"
+criterion = "0.4.0"
 tetsy-scale-codec = { version = "2.0.1" }
diff --git a/tetsy-hash256-std-hasher/Cargo.toml b/tetsy-hash256-std-hasher/Cargo.toml
index a545ab5..8c5a1a6 100644
--- a/tetsy-hash256-std-hasher/Cargo.toml
+++ b/tetsy-hash256-std-hasher/Cargo.toml
@@ -19,7 +19,7 @@ harness = false
 crunchy = "0.2.1"
 
 [dev-dependencies]
-criterion = "0.3.3"
+criterion = "0.4.0"
 
 [features]
 default = ["std"]
diff --git a/tetsy-memory-db/Cargo.toml b/tetsy-memory-db/Cargo.toml
index af21439..cdb5ecc 100644
--- a/tetsy-memory-db/Cargo.toml
+++ b/tetsy-memory-db/Cargo.toml
@@ -18,7 +18,7 @@ hashbrown = { version = "0.9.1", default-features = false, features = [ "ahash"
 
 [dev-dependencies]
 tetsy-keccak-hasher = { path = "../test-support/tetsy-keccak-hasher", version = "0.15.4"}
-criterion = "0.3.3"
+criterion = "0.4.0"
 
 [features]
 default = ["std"]
diff --git a/tetsy-trie-db/test/Cargo.toml b/tetsy-trie-db/test/Cargo.toml
index f2465e1..1bd0dc4 100644
--- a/tetsy-trie-db/test/Cargo.toml
+++ b/tetsy-trie-db/test/Cargo.toml
@@ -26,6 +26,6 @@ tetsy-trie-standardmap = { path = "../../test-support/tetsy-trie-standardmap", v
 tetsy-keccak-hasher = { path = "../../test-support/tetsy-keccak-hasher", version = "0.15.4" }
 tetsy-reference-trie = { path = "../../test-support/tetsy-reference-trie", version = "0.23.0" }
 hex-literal = "0.3"
-criterion = "0.3"
+criterion = "0.4"
 env_logger = "0.8"
 log = "0.4"