diff --git a/.github/workflows/ci_server.yml b/.github/workflows/ci_server.yml
index 3db3ff3d19..91e0ae7baa 100644
--- a/.github/workflows/ci_server.yml
+++ b/.github/workflows/ci_server.yml
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
     services:
       mongo:
-        image: mongo:5-focal
+        image: mongo:6-focal
         ports:
           - 27017:27017
     steps: