diff --git a/build_conda.sh b/build_conda.sh
index 43564311a..ac19b960d 100644
--- a/build_conda.sh
+++ b/build_conda.sh
@@ -50,7 +50,7 @@ NVCC_APPEND_FLAGS="--threads 4" \
 
 pip install git+https://github.com/fzyzcjy/torch_memory_saver.git@dc6876905830430b5054325fa4211ff302169c6b --no-cache-dir --force-reinstall
 pip install git+https://github.com/fzyzcjy/Megatron-Bridge.git@dev_rl --no-build-isolation
-pip install nvidia-modelopt[torch]>=0.37.0 --no-build-isolation
+pip install "nvidia-modelopt[torch]>=0.37.0" --no-build-isolation
 
 # megatron
 cd $BASE_DIR
@@ -80,4 +80,4 @@ pip install "numpy<2"
 cd $BASE_DIR/sglang
 git apply $SLIME_DIR/docker/patch/v0.5.7/sglang.patch
 cd $BASE_DIR/Megatron-LM
-git apply $SLIME_DIR/docker/patch/v0.5.7/megatron.patch
\ No newline at end of file
+git apply $SLIME_DIR/docker/patch/v0.5.7/megatron.patch