diff --git a/.github/workflows/build_cmake.yml b/.github/workflows/build_cmake.yml
index 0849982578..adc208a61e 100644
--- a/.github/workflows/build_cmake.yml
+++ b/.github/workflows/build_cmake.yml
@@ -44,8 +44,8 @@ jobs:
             cpack: "",
           }
         - {
-            name: "macOS Latest Clang", artifact: "macOS.dmg",
-            os: macos-latest,
+            name: "macOS Clang", artifact: "macOS.dmg",
+            os: macos-13,
             cc: "clang", cxx: "clang++",
             build_type: "Release",
             cmake_flags: "-G Ninja",
@@ -116,6 +116,18 @@ jobs:
         repository: openchemistry/molecules
         path: molecules
 
+    - name: Checkout fragments
+      uses: actions/checkout@v4
+      with:
+        repository: openchemistry/fragments
+        path: fragments
+
+    - name: Checkout crystals
+      uses: actions/checkout@v4
+      with:
+        repository: openchemistry/crystals
+        path: crystals
+
     - name: Checkout i18n
       uses: actions/checkout@v4
       with:
diff --git a/.github/workflows/build_qt6.yml b/.github/workflows/build_qt6.yml
index f622e2db45..c595558725 100644
--- a/.github/workflows/build_qt6.yml
+++ b/.github/workflows/build_qt6.yml
@@ -39,7 +39,7 @@ jobs:
           }
         - {
             name: "macOS Qt6", artifact: "",
-            os: macos-latest,
+            os: macos-13,
             cc: "clang", cxx: "clang++",
             build_type: "Release",
             cmake_flags: "-G Ninja",