diff --git a/docker/Dockerfile-base b/docker/Dockerfile-base
index 8d5a2d731..c1090b0c9 100644
--- a/docker/Dockerfile-base
+++ b/docker/Dockerfile-base
@@ -1,4 +1,4 @@
-FROM python:3.11-slim
+FROM python:3.14.0a3-slim
 LABEL description.short="Weaver Base"
 LABEL description.long="Workflow Execution Management Service (EMS); Application, Deployment and Execution Service (ADES)"
 LABEL maintainer="Francis Charette-Migneault <francis.charette-migneault@crim.ca>"