diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 502e18c14..9b5e252ef 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -31,7 +31,7 @@ jobs:
 
     - name: Checkout pico-sdk submodules
       working-directory: ${{github.workspace}}/pico-sdk
-      run: git submodule update --init
+      run: git submodule update --init --recursive
 
     - name: Create Build Environment
       # Some projects don't allow in-source building, so create a separate build directory
diff --git a/.github/workflows/macOS.yml b/.github/workflows/macOS.yml
index 51175771f..9100931db 100644
--- a/.github/workflows/macOS.yml
+++ b/.github/workflows/macOS.yml
@@ -31,7 +31,7 @@ jobs:
 
       - name: Checkout pico-sdk submodules
         working-directory: ${{github.workspace}}/pico-sdk
-        run: git submodule update --init
+        run: git submodule update --init --recursive
       - name: Install dependencies
         run: |
           brew install cmake
@@ -55,4 +55,4 @@ jobs:
           mkdir build_native
           cd build_native
           cmake .. -G "Unix Makefiles" -DPICO_SDK_PATH=../../pico-sdk -DCMAKE_BUILD_TYPE=Debug -DPICO_PLATFORM=host
-          cmake --build .
\ No newline at end of file
+          cmake --build .
diff --git a/.github/workflows/multi-gcc.yml b/.github/workflows/multi-gcc.yml
index 526e4f040..0a70cb05a 100644
--- a/.github/workflows/multi-gcc.yml
+++ b/.github/workflows/multi-gcc.yml
@@ -32,7 +32,7 @@ jobs:
 
     - name: Checkout pico-sdk submodules
       working-directory: ${{github.workspace}}/pico-sdk
-      run: git submodule update --init
+      run: git submodule update --init --recursive
 
     - name: Create Build Environment
       # Some projects don't allow in-source building, so create a separate build directory
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index acf81a825..0152b01b3 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -31,7 +31,7 @@ jobs:
 
       - name: Checkout pico-sdk submodules
         working-directory: ${{github.workspace}}/pico-sdk
-        run: git submodule update --init
+        run: git submodule update --init --recursive
 
       - name: Install dependencies
         working-directory: ${{github.workspace}}/pico-examples