diff --git a/Makefile b/Makefile
index 5a7fb8e9a..e5c3221f9 100644
--- a/Makefile
+++ b/Makefile
@@ -143,7 +143,7 @@ $(BUILD_DIR)/virtualenv: | $(BUILD_DIR)
 	virtualenv --version || pip install virtualenv
 	virtualenv build/python-dev
 	virtualenv build/python-rel
-	$(SCRIPT_DIR)/python-dev3 pip install black
+	$(SCRIPT_DIR)/python-dev3 pip install black==21.12b0
 	@touch $(BUILD_DIR)/virtualenv