diff --git a/pyproject.toml b/pyproject.toml
index 35f3d9215..200a07a6f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
 requires = ["setuptools",
-            "wheel>0.32.0.<0.33.0",
+            "wheel>0.32.0,<0.33.0",
             "Cython",
             "cymem>=2.0.2,<2.1.0",
             "preshed>=2.0.1,<2.1.0",