diff --git a/.github/workflows/_build-android.yml b/.github/workflows/_build-android.yml
index 9fb1a653388..18cdef7eaac 100644
--- a/.github/workflows/_build-android.yml
+++ b/.github/workflows/_build-android.yml
@@ -42,7 +42,7 @@ jobs:
         id: download-sdk
         uses: suisei-cn/actions-download-file@v1.4.0
         with:
-          url: https://github.com/o01eg/freeorion-sdk/releases/download/v15/FreeOrionSDK_15_Android-${{ matrix.arch }}.zip
+          url: https://github.com/o01eg/freeorion-sdk/releases/download/v16/FreeOrionSDK_16_Android-${{ matrix.arch }}.zip
           target: ../
       - uses: nttld/setup-ndk@v1
         id: setup-ndk
diff --git a/.github/workflows/_build-windows-msvs.yml b/.github/workflows/_build-windows-msvs.yml
index c96bc4f5e8e..53d680ce024 100644
--- a/.github/workflows/_build-windows-msvs.yml
+++ b/.github/workflows/_build-windows-msvs.yml
@@ -23,7 +23,7 @@ jobs:
         id: download-sdk
         uses: suisei-cn/actions-download-file@v1.4.0
         with:
-          url: https://github.com/o01eg/freeorion-sdk/releases/download/v15/FreeOrionSDK_15_MSVC-v143-Win32.zip
+          url: https://github.com/o01eg/freeorion-sdk/releases/download/v16/FreeOrionSDK_16_MSVC-v143-Win32.zip
           target: ../
       - name: Add msbuild to PATH
         uses: microsoft/setup-msbuild@v1.3.1
diff --git a/.github/workflows/_build-windows.yml b/.github/workflows/_build-windows.yml
index e3f179276b2..8b7ffc1efd8 100644
--- a/.github/workflows/_build-windows.yml
+++ b/.github/workflows/_build-windows.yml
@@ -23,7 +23,7 @@ jobs:
         id: download-sdk
         uses: suisei-cn/actions-download-file@v1.4.0
         with:
-          url: https://github.com/o01eg/freeorion-sdk/releases/download/v15/FreeOrionSDK_15_MSVC-v143-Win32.zip
+          url: https://github.com/o01eg/freeorion-sdk/releases/download/v16/FreeOrionSDK_16_MSVC-v143-Win32.zip
           target: ../
       - name: Add msbuild to PATH
         uses: microsoft/setup-msbuild@v1.3.1
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 91a21ea895a..9401530e40c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -102,7 +102,7 @@ else()
 endif()
 
 if(APPLE)
-    set(FreeOrionSDK_VERSION 15)
+    set(FreeOrionSDK_VERSION 16)
     set(FreeOrionSDK_FILE "FreeOrionSDK_${FreeOrionSDK_VERSION}_Clang-MacOSX-10.15-x86_64.tar.bz2")
     if(NOT EXISTS "${CMAKE_BINARY_DIR}/${FreeOrionSDK_FILE}")
     file(DOWNLOAD