diff --git a/docker/Dockerfile.gpu b/docker/Dockerfile.gpu
index 3b25a2c..b3f35a5 100644
--- a/docker/Dockerfile.gpu
+++ b/docker/Dockerfile.gpu
@@ -23,10 +23,6 @@ RUN apt update && \
 RUN python3 -m pip install --no-cache-dir --break-system-packages \
     torch --index-url https://download.pytorch.org/whl/cu124
 
-RUN git clone https://github.com/NVIDIA/apex
-RUN cd apex && \
-    pip install -v --disable-pip-version-check --no-cache-dir --no-build-isolation --break-system-packages --config-settings  "--build-option=--cpp_ext" --config-settings "--build-option=--cuda_ext" ./
-
 # fix library path for tensorflow and link a file
 ENV LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/usr/local/cuda/lib64"
 RUN ln -s /usr/local/cuda/lib64/libcusolver.so.11 /usr/local/cuda/lib64/libcusolver.so.10