diff --git a/om-bistro/Dockerfile b/om-bistro/Dockerfile
index 706af0d..5dddbda 100644
--- a/om-bistro/Dockerfile
+++ b/om-bistro/Dockerfile
@@ -1,5 +1,4 @@
-
-FROM python:3.8-slim-buster
+FROM python:3.13.5-slim-bookworm
 
 WORKDIR /python-docker
 
@@ -10,6 +9,6 @@ RUN pip3 install -r requirements.txt
 
 COPY . .
 
-ENV FLASK_APP openmensa_server
+ENV FLASK_APP=openmensa_server
 
 CMD [ "python3", "-m" , "flask", "run", "--host=0.0.0.0"]
diff --git a/slurm-exporter/Dockerfile b/slurm-exporter/Dockerfile
index 827f7cd..c630bb0 100644
--- a/slurm-exporter/Dockerfile
+++ b/slurm-exporter/Dockerfile
@@ -3,7 +3,7 @@ ARG SLURM_VERSION=24.05.3
 
 FROM cimg/go:$GO_VERSION AS builder
 
-ARG SLURM_EXPORTER_VERSION=0.21.1
+ARG SLURM_EXPORTER_VERSION=0.21.2
 
 WORKDIR /build
 RUN wget "https://github.com/scalableminds/prometheus-slurm-exporter/archive/refs/tags/${SLURM_EXPORTER_VERSION}.zip" && unzip "${SLURM_EXPORTER_VERSION}.zip"