diff --git a/Dockerfile b/Dockerfile
index 7cf311a..84e9799 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,9 +26,9 @@ setuptools
 
 RUN \
 python3 -m pip install \
-ansible \
-ansible-lint \
-molecule \
-molecule-docker \
-molecule-hetznercloud \
-testinfra
+ansible-lint==5.0.0 \
+ansible==2.10.7 \
+molecule-docker==0.2.4 \
+molecule-hetznercloud==1.0.0 \
+molecule==3.2.3 \
+pytest-testinfra==6.1.0