diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c4d54c3..88e5612 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        container: ["ubuntu:24.04", "debian:12:5"]
+        container: ["ubuntu:24.04", "debian:12.5"]
     container: ${{ matrix.container }}
     steps:
       - uses: actions/checkout@v3