diff --git a/Cargo.toml b/Cargo.toml
index 3e5e062..ef056af 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ serde = { version = "1.0", features=["derive"], optional = true }
 smallvec = "1.8"
 
 [dev-dependencies]
-criterion = { version = "0.3", features=["html_reports"] }
+criterion = { version = "0.5", features=["html_reports"] }
 
 [[bench]]
 name = 'optimizer'