diff --git a/.github/workflows/build-macos.yml b/.github/workflows/build-macos.yml
index 462723222..7b7646328 100644
--- a/.github/workflows/build-macos.yml
+++ b/.github/workflows/build-macos.yml
@@ -19,16 +19,16 @@ jobs:
         # Github Actions requires a single row to be added to the build matrix.
         # See https://help.github.com/en/articles/workflow-syntax-for-github-actions.
         name: [
-          macOS-10.15-xcode-11.3.1,
+          macos-11-xcode-13.4.1,
         ]
 
         build_type: [Debug, Release]
         build_unstable: [ON]
         include:
-          - name: macOS-10.15-xcode-11.3.1
-            os: macOS-10.15
+          - name: macos-11-xcode-13.4.1
+            os: macos-11
             compiler: xcode
-            version: "11.3.1"
+            version: "13.4.1"
 
     steps:
       - name: Checkout
@@ -43,7 +43,7 @@ jobs:
             echo "CC=gcc-${{ matrix.version }}" >> $GITHUB_ENV
             echo "CXX=g++-${{ matrix.version }}" >> $GITHUB_ENV
           else
-            sudo xcode-select -switch /Applications/Xcode_${{ matrix.version }}.app
+            sudo xcode-select -switch /Applications/Xcode.app
             echo "CC=clang" >> $GITHUB_ENV
             echo "CXX=clang++" >> $GITHUB_ENV
           fi
diff --git a/.github/workflows/build-python.yml b/.github/workflows/build-python.yml
index f42939bc2..f80b9362c 100644
--- a/.github/workflows/build-python.yml
+++ b/.github/workflows/build-python.yml
@@ -22,7 +22,7 @@ jobs:
           ubuntu-18.04-gcc-5,
           ubuntu-18.04-gcc-9,
           ubuntu-18.04-clang-9,
-          macOS-10.15-xcode-11.3.1,
+          macOS-11-xcode-13.4.1,
           ubuntu-18.04-gcc-5-tbb,
         ]
 
@@ -52,10 +52,10 @@ jobs:
             build_type: Debug
             python_version: "3"
 
-          - name: macOS-10.15-xcode-11.3.1
-            os: macOS-10.15
+          - name: macOS-11-xcode-13.4.1
+            os: macOS-11
             compiler: xcode
-            version: "11.3.1"
+            version: "13.4.1"
 
           - name: ubuntu-18.04-gcc-5-tbb
             os: ubuntu-18.04
@@ -103,7 +103,7 @@ jobs:
             echo "CC=gcc-${{ matrix.version }}" >> $GITHUB_ENV
             echo "CXX=g++-${{ matrix.version }}" >> $GITHUB_ENV
           else
-            sudo xcode-select -switch /Applications/Xcode_${{ matrix.version }}.app
+            sudo xcode-select -switch /Applications/Xcode.app
             echo "CC=clang" >> $GITHUB_ENV
             echo "CXX=clang++" >> $GITHUB_ENV
           fi