diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a16a1508c..3e3c5ec92 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -106,7 +106,7 @@ jobs:
     name: "Container testing"
     needs: build-fedora
     runs-on: ubuntu-latest
-    container: quay.io/centos-bootc/fedora-bootc:eln
+    container: quay.io/centos-bootc/fedora-bootc:eln-1708320930
     steps:
       - name: Download
         uses: actions/download-artifact@v4
diff --git a/tests/kolainst/install b/tests/kolainst/install
index 545f723b4..4ee19e503 100755
--- a/tests/kolainst/install
+++ b/tests/kolainst/install
@@ -10,7 +10,7 @@
 
 set -xeuo pipefail
 
-IMAGE=quay.io/centos-bootc/fedora-bootc-dev:eln
+IMAGE=quay.io/centos-bootc/fedora-bootc-dev:eln-1708320930
 # TODO: better detect this, e.g. look for an empty device
 DEV=/dev/vda