diff --git a/paddle/scripts/paddle_docker_build.sh b/paddle/scripts/paddle_docker_build.sh
index ddae9f19a2..0bf8c79892 100755
--- a/paddle/scripts/paddle_docker_build.sh
+++ b/paddle/scripts/paddle_docker_build.sh
@@ -32,7 +32,7 @@ function start_build_docker() {
     DOCKER_ENV=$(cat <<EOL
         -e FLAGS_fraction_of_gpu_memory_to_use=0.15 \
         -e CTEST_OUTPUT_ON_FAILURE=1 \
-        -e CTEST_PARALLEL_LEVEL=5 \
+        -e CTEST_PARALLEL_LEVEL=1 \
         -e APT_MIRROR=${apt_mirror} \
         -e WITH_GPU=ON \
         -e CUDA_ARCH_NAME=Auto \