diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index d42aa02c9d..d4b444f3df 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -34,7 +34,7 @@ jobs:
     runs-on: macos-latest
     timeout-minutes: 90
     env:
-      MACOSX_DEPLOYMENT_TARGET: "13.0"
+      MACOSX_DEPLOYMENT_TARGET: "13.3"
     steps:
       - name: Checkout code
         uses: actions/checkout@v7.0.0
@@ -45,7 +45,7 @@ jobs:
           python-version: '3.x'
       
       - name: Build
-        run: python scripts/mk_unix_dist.py --dotnet-key=$GITHUB_WORKSPACE/resources/z3.snk --arch=x64 --os=osx-13.0
+        run: python scripts/mk_unix_dist.py --dotnet-key=$GITHUB_WORKSPACE/resources/z3.snk --arch=x64 --os=osx-13.3
             
       - name: Validate libz3.dylib and z3 architecture (must be x86_64)
         run: |