diff --git a/backend-py/Dockerfile b/backend-py/Dockerfile
index aecb62b0..07b9cd3c 100644
--- a/backend-py/Dockerfile
+++ b/backend-py/Dockerfile
@@ -1,5 +1,5 @@
 # Use Python 3.14.1 base image and install uv
-FROM python:3.14.8-slim-bookworm AS build
+FROM python:3.15.0-slim-bookworm AS build
 
 # Install uv
 RUN pip install --no-cache-dir uv
@@ -30,7 +30,7 @@ COPY src ./src
 RUN uv sync --frozen --no-dev
 
 # Production stage
-FROM python:3.14.8-slim-bookworm AS deploy
+FROM python:3.15.0-slim-bookworm AS deploy
 
 # Set environment variables
 ENV PYTHONUNBUFFERED=1 \
diff --git a/docker-compose.yml b/docker-compose.yml
index bd8605d5..3dc47d0c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -72,7 +72,7 @@ services:
 
   backend-py:
     profiles: ["python", "all"]
-    image: python:3.14
+    image: python:3.15
     container_name: backend-py
     entrypoint: /application/start-local.sh
     volumes: ["./backend-py:/application", "/application/.venv"]
@@ -88,7 +88,7 @@ services:
 
   backend-py-test:
     profiles: ["python", "all"]
-    image: python:3.14
+    image: python:3.15
     container_name: backend-py-test
     entrypoint: /application/run-unit-tests.sh
     volumes: ["./backend-py:/application", "/application/.venv"]