diff --git a/docker/Dockerfile b/docker/Dockerfile
index cb1ee7e..f82b95c 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM nvidia/cuda:11.8.0-cudnn8-devel-ubuntu20.04
+FROM nvidia/cuda:11.8.0-cudnn8-devel-ubuntu22.04
 
 SHELL ["/bin/sh", "-c"]
 
diff --git a/docker/build.sh b/docker/build.sh
index 35ccb72..b0af11a 100755
--- a/docker/build.sh
+++ b/docker/build.sh
@@ -45,9 +45,11 @@ if [ "$COMMIT" == "$(git rev-parse --short HEAD)" ]; then
 fi
 
 # check if the commit has been pushed 
-REMOTE_COMMIT=$(git ls-remote https://gitlab.etp.kit.edu/jkiesele/minicalosim.git | grep $COMMIT)
+REMOTE_COMMIT=$(git ls-remote https://github.com/jkiesele/minicalosim | grep $COMMIT)
 if [ -z "$REMOTE_COMMIT" ]; then
        echo "ERROR: Commit $COMMIT not found in remote repository."
+       echo only found commits:
+         git ls-remote https://github.com/jkiesele/minicalosim
        exit 1
 fi