diff --git a/.github/actions/libopus/action.yml b/.github/actions/libopus/action.yml
index a271156..a99f599 100644
--- a/.github/actions/libopus/action.yml
+++ b/.github/actions/libopus/action.yml
@@ -20,7 +20,7 @@ runs:
     uses: actions/checkout@v3.0.0
     with:
       repository: xiph/opus
-      ref: master
+      ref: v1.3.1
       path: opus        
   - name: Check cache
     id: libopus-cache
@@ -51,4 +51,4 @@ runs:
     uses: actions/upload-artifact@v2
     with:
       name: libopus-${{ inputs.env }}-${{ inputs.config }}
-      path: dist/libopus.tgz
\ No newline at end of file
+      path: dist/libopus.tgz