diff --git a/.ci/Containerfile.gitlabci b/.ci/Containerfile.gitlabci
index a4b4c6b9d..7165be9c7 100644
--- a/.ci/Containerfile.gitlabci
+++ b/.ci/Containerfile.gitlabci
@@ -19,7 +19,8 @@ RUN apt-get build-dep -y .
 RUN apt-get install -y build-essential \
     # Test dependencies
     sshpass parted \
-    sudo python3-pip
+    sudo python3-pip \
+    python3-flake8
 
 # Module dependencies
 RUN apt-get install -y $(./run --list-dependencies)