diff --git a/docker/base_images/base_image.Dockerfile.jinja b/docker/base_images/base_image.Dockerfile.jinja
index 09313ac17..1412b31c8 100644
--- a/docker/base_images/base_image.Dockerfile.jinja
+++ b/docker/base_images/base_image.Dockerfile.jinja
@@ -4,6 +4,11 @@ ENV CUDNN_VERSION="8.9.5.29"
 ENV CUDA="12.2"
 ENV LD_LIBRARY_PATH="/usr/local/cuda/extras/CUPTI/lib64:$LD_LIBRARY_PATH"
 
+{# Configure Ubuntu mirrors with fallbacks for better reliability #}
+RUN if [ -f /etc/apt/sources.list ] && ! grep -q "mirror.ubuntu.com" /etc/apt/sources.list; then \
+        sed -i.bak 's|http://archive.ubuntu.com/ubuntu/|http://mirror.ubuntu.com/ubuntu/ http://archive.ubuntu.com/ubuntu/|g' /etc/apt/sources.list; \
+    fi
+
 RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64/3bf863cc.pub && \
     apt-get update && apt-get install -y --no-install-recommends \
         ca-certificates \