diff --git a/packaging/build_conda.sh b/packaging/build_conda.sh
index be2bf39b818..2102394dd37 100755
--- a/packaging/build_conda.sh
+++ b/packaging/build_conda.sh
@@ -21,7 +21,7 @@ if [[ "$CU_VERSION" == cu115 ]]; then
 fi
 if [[ "$PYTHON_VERSION" == 3.10 ]]; then
     export ADDITIONAL_CHANNELS="-c conda-forge"
-    export NUMPY_PACKAGE=" - numpy=1.21.2"
+    export NUMPY_PACKAGE=" - numpy 1.21.2"
 fi
 
 conda build -c defaults -c $CUDATOOLKIT_CHANNEL $CONDA_CHANNEL_FLAGS $ADDITIONAL_CHANNELS --no-anaconda-upload --python "$PYTHON_VERSION" packaging/torchaudio