diff --git a/VERSION b/VERSION
index ab0fa33..c20c645 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-5.0.5
+5.0.6
diff --git a/makefile-pypi.mk b/makefile-pypi.mk
index c18faec..6cd2741 100644
--- a/makefile-pypi.mk
+++ b/makefile-pypi.mk
@@ -11,6 +11,7 @@ dist:
 
 patch: clean twine
 	$(call banner, "patch")
+	pip install -r requirements-dev.txt
 	cms bumpversion patch
 	@VERSION=$$(cat VERSION); \
 		git commit -m "bump version ${VERSION}" .; git push