diff --git a/keras3-gpu/Dockerfile b/keras3-gpu/Dockerfile
index d3bd17a07f04aa2645b551b76d2885c79fa82a3f..d2561d17973c26c056a4d5caec2500f36b4a55ad 100644
--- a/keras3-gpu/Dockerfile
+++ b/keras3-gpu/Dockerfile
@@ -93,8 +93,6 @@ RUN mamba install --yes \
 RUN pip install --no-cache-dir \
     # gymnasium atari gives conflicts when installed from conda-forge
     gymnasium[atari,box2d,accept-rom-license] && \
-    # install newest version of keras, since Keras3 is quite new and moves fast
-    pip install --no-cache-dir --upgrade keras && \
     fix-permissions "${CONDA_DIR}" && \
     fix-permissions "/home/${NB_USER}"