diff --git a/.github/workflows/autobuild.yaml b/.github/workflows/autobuild.yaml
index 8e9da48..8e62973 100644
--- a/.github/workflows/autobuild.yaml
+++ b/.github/workflows/autobuild.yaml
@@ -170,7 +170,7 @@ jobs:
             "-DCMAKE_CXX_COMPILER=clang++"
             "-DLLVM_ENABLE_ZLIB=FORCE_ON"
             "-DCMAKE_OSX_ARCHITECTURES=x86_64;arm64"
-            "-DCMAKE_OSX_DEPLOYMENT_TARGET=10.9"
+            "-DCMAKE_OSX_DEPLOYMENT_TARGET=10.13"
           # BoringSSL doesn't support universal binaries when building with ASM.
           grpc_cmake: >-
             "-DOPENSSL_NO_ASM=ON"