diff --git a/pyproject.toml b/pyproject.toml
index e68db90..55d7f12 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ keywords = [
 requires-python = ">=3.7"
 # All runtime dependencies that must be packaged, pin major version only.
 dependencies = [
-    "codetiming ~= 1.4",
+    "codetiming~=1.4",
     "importlib-metadata<4; python_version<'3.8'",
     "pluggy~=1.0",
     "werkzeug~=2.0",