diff --git a/.buildkite/check-wheel-size.py b/.buildkite/check-wheel-size.py
index 105d0b9e77a4..e29eb78a9f94 100644
--- a/.buildkite/check-wheel-size.py
+++ b/.buildkite/check-wheel-size.py
@@ -5,6 +5,7 @@
 # Read the VLLM_MAX_SIZE_MB environment variable, defaulting to 300 MiB
 # Note that we have 400 MiB quota, please use it wisely.
 # See https://github.com/pypi/support/issues/3792 .
+# Please also sync the value with the one in Dockerfile.
 VLLM_MAX_SIZE_MB = int(os.environ.get('VLLM_MAX_SIZE_MB', 300))
 
 
diff --git a/Dockerfile b/Dockerfile
index 261f5440aee4..cb9cf0da5be6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -126,8 +126,8 @@ RUN --mount=type=cache,target=/root/.cache/ccache \
 
 # Check the size of the wheel if RUN_WHEEL_CHECK is true
 COPY .buildkite/check-wheel-size.py check-wheel-size.py
-# Default max size of the wheel is 250MB
-ARG VLLM_MAX_SIZE_MB=250
+# sync the default value with .buildkite/check-wheel-size.py
+ARG VLLM_MAX_SIZE_MB=300
 ENV VLLM_MAX_SIZE_MB=$VLLM_MAX_SIZE_MB
 ARG RUN_WHEEL_CHECK=true
 RUN if [ "$RUN_WHEEL_CHECK" = "true" ]; then \