diff --git a/.github/workflows/test-system.yml b/.github/workflows/test-system.yml
index caeaff3c5..d3daaf5ed 100644
--- a/.github/workflows/test-system.yml
+++ b/.github/workflows/test-system.yml
@@ -45,7 +45,7 @@ jobs:
     timeout-minutes: 10
     name: "python on fedora"
     runs-on: ubuntu-latest
-    container: fedora:43
+    container: fedora:44@sha256:64de49837325632232088e59c20518565a9d657095f9f3c2fa6033a42fb1412b
     steps:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with: