diff --git a/.github/workflows/macos-ci.yml b/.github/workflows/macos-ci.yml
index cfb2bef5..fb8d8f4c 100644
--- a/.github/workflows/macos-ci.yml
+++ b/.github/workflows/macos-ci.yml
@@ -13,14 +13,14 @@ jobs:
         run: |
           brew install libjpeg-turbo libpng
           if [[ "${{ matrix.compiler }}" == "gcc" ]]; then
-            brew install gcc@9
+            brew install gcc@12
           fi
       - name: Build string_theory
         run: |
           mkdir -p build_deps && cd build_deps
           if [[ "${{ matrix.compiler }}" == "gcc" ]]; then
-            export CC=gcc-9
-            export CXX=g++-9
+            export CC=gcc-12
+            export CXX=g++-12
           fi
           git clone https://github.com/zrax/string_theory
           mkdir -p string_theory/build && cd string_theory/build
@@ -31,8 +31,8 @@ jobs:
         run: |
           mkdir build && cd build
           if [[ "${{ matrix.compiler }}" == "gcc" ]]; then
-            export CC=gcc-9
-            export CXX=g++-9
+            export CC=gcc-12
+            export CXX=g++-12
           fi
           cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_FIND_FRAMEWORK=LAST \
             -DCMAKE_PREFIX_PATH="${GITHUB_WORKSPACE}/build_deps/prefix;/usr/local/opt/jpeg-turbo;/usr/local/opt/openssl" \