Add commit hash

requirements.txt

@@ -28,4 +28,4 @@ half,https://github.com/pfultz2/half/archive/1.12.0.tar.gz -X header -H sha256:0
 pybind/pybind11@d159a563383d10c821ba7b2a71905d1207db6de4 --build
 msgpack/msgpack-c@cpp-3.3.0 -DMSGPACK_BUILD_TESTS=Off
 sqlite3@3.17 -DCMAKE_POSITION_INDEPENDENT_CODE=On
-ROCmSoftwarePlatform/composable_kernel -X header
+ROCmSoftwarePlatform/composable_kernel@639147432b6922bd8e4051ba751e4e63dd4eb196 -X header