diff --git a/.zuul.yaml b/.zuul.yaml
index 759ee9d6..558010e3 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -28,8 +28,8 @@
     dependencies: opendev-buildset-registry
     description: Build OpenDev Docker images for storyboard
     requires:
-      - python-base-container-image
-      - python-builder-container-image
+      - python-base-3.9-bullseye-container-image
+      - python-builder-3.9-bullseye-container-image
     provides: storyboard-container-image
     vars: &storyboard_opendev_image_vars
       zuul_work_dir: src/opendev.org/opendev/storyboard
@@ -61,8 +61,8 @@
     parent: opendev-upload-docker-image
     description: Build OpenDev storyboard Docker images and upload to Docker Hub.
     requires:
-      - python-base-container-image
-      - python-builder-container-image
+      - python-base-3.9-bullseye-container-image
+      - python-builder-3.9-bullseye-container-image
     provides: storyboard-container-image
     vars: *storyboard_opendev_image_vars
     secrets:
diff --git a/Dockerfile b/Dockerfile
index b7551c9c..c410c2fc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,12 +13,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM opendevorg/python-builder as builder
+FROM opendevorg/python-builder:3.9-bullseye as builder
 
 COPY . /tmp/src
 RUN assemble
 
-FROM opendevorg/python-base as storyboard
+FROM opendevorg/python-base:3.9-bullseye as storyboard
 
 COPY --from=builder /output/ /output
 RUN /output/install-from-bindep