diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8cff14a7df5c7657b9528b72fcc8b22f2eec6b19..f8e0ec40d5713558942f189172e177cf11d371c9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -26,6 +26,7 @@ workflow:
     - python -m pip install --upgrade pip 
     - python -m pip install conan
     # Install prerequisite for git-gui and gitk
+    - sudo yum -y update
     - sudo yum -y install tcl-devel tk-devel
     # Build git with conan
     - conan profile detect --force