diff --git a/tensorflow/Dockerfile b/tensorflow/Dockerfile
index 9aaf541c0ab645f5589bbe9c7c88b859940cddc1..1ac997501adf8e5406d0df2bf02bb6caf0539f69 100644
--- a/tensorflow/Dockerfile
+++ b/tensorflow/Dockerfile
@@ -21,8 +21,7 @@ RUN ln -s /usr/local/cuda/lib64/stubs/libcuda.so /usr/local/cuda/lib64/stubs/lib
     echo "/usr/local/cuda/lib64/stubs" > /etc/ld.so.conf.d/z-cuda-stubs.conf && \
     ldconfig
 
-ARG BAZEL_VERSION
-ENV BAZEL_VERSION ${BAZEL_VERSION:-0.26.1}
+ARG BAZEL_VERSION=0.26.1
 RUN mkdir -p /opt/bazel && \
     wget -O /opt/bazel/installer.sh "https://github.com/bazelbuild/bazel/releases/download/${BAZEL_VERSION}/bazel-${BAZEL_VERSION}-installer-linux-x86_64.sh" && \
     wget -O /opt/bazel/LICENSE.txt "https://raw.githubusercontent.com/bazelbuild/bazel/master/LICENSE" && \
@@ -30,8 +29,7 @@ RUN mkdir -p /opt/bazel && \
     /opt/bazel/installer.sh && \
     rm -f /opt/bazel/installer.sh
 
-ARG TF_VERSION
-ENV TF_VERSION ${TF_VERSION:-1.15.2}
+ARG TF_VERSION=1.15.2
 RUN git clone --recursive --branch v${TF_VERSION} https://github.com/tensorflow/tensorflow.git /opt/tensorflow/src
 
 COPY disable-enforced-bazel-build-mirror.patch /opt/tensorflow/patches/disable-enforced-bazel-build-mirror.patch