diff --git a/.github/workflows/scripts/before_install.sh b/.github/workflows/scripts/before_install.sh
index 82d3a8e..878db18 100755
--- a/.github/workflows/scripts/before_install.sh
+++ b/.github/workflows/scripts/before_install.sh
@@ -55,7 +55,7 @@ pulp_scheme: "https"
 image:
   name: "pulp"
   tag: "ci_build"
-  ci_base: "ghcr.io/pulp/pulp-ci-centos9:latest"
+  ci_base: "ghcr.io/pulp/pulp-ci-centos10:latest"
   source: "${COMPONENT_SOURCE}"
   ci_requirements: $(test -f ci_requirements.txt && echo -n true || echo -n false)
   upperbounds: $(test "${TEST}" = "pulp" && echo -n true || echo -n false)
diff --git a/pulp_gem/tests/unit/test_serializers.py b/pulp_gem/tests/unit/test_serializers.py
index ad19ba7..85d2245 100644
--- a/pulp_gem/tests/unit/test_serializers.py
+++ b/pulp_gem/tests/unit/test_serializers.py
@@ -53,8 +53,8 @@ def test_valid_data(self, ANALYZE_GEM, _ARTIFACT_FROM_DATA):
         serializer = GemContentSerializer(data=data)
         serializer.is_valid(raise_exception=True)
         # Verification
-        ANALYZE_GEM.called_once_with(self.artifact)
-        _ARTIFACT_FROM_DATA.called_once_with("---\n...")
+        ANALYZE_GEM.assert_called_once_with(self.artifact.file)
+        _ARTIFACT_FROM_DATA.assert_called_once_with("---\n...")
 
         # Test that the GemContentSerializer does accept duplicate data.
         serializer.save()
diff --git a/template_config.yml b/template_config.yml
index 50a1bcc..4f3b021 100644
--- a/template_config.yml
+++ b/template_config.yml
@@ -9,7 +9,7 @@
 check_commit_message: true
 check_manifest: true
 check_stray_pulpcore_imports: true
-ci_base_image: "ghcr.io/pulp/pulp-ci-centos9"
+ci_base_image: "ghcr.io/pulp/pulp-ci-centos10"
 ci_env: {}
 ci_trigger: "{pull_request: {branches: ['*']}}"
 cli_package: "pulp-cli-gem"