diff --git a/Dockerfile b/Dockerfile
index 524d87b..8c9829a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM python:3.12-alpine
+FROM python:3.14-alpine@sha256:faee120f7885a06fcc9677922331391fa690d911c020abb9e8025ff3d908e510
 
 RUN apk update && apk --no-cache add gcc musl-dev openjdk17-jdk curl graphviz ttf-dejavu fontconfig