diff --git a/.github/workflows/ci-clang-scan.yml b/.github/workflows/ci-clang-scan.yml
index 3772be8a..9d9d266d 100644
--- a/.github/workflows/ci-clang-scan.yml
+++ b/.github/workflows/ci-clang-scan.yml
@@ -14,6 +14,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
     - name: Configure CMake
       run: |
         cmake --version
diff --git a/.github/workflows/ci-cmake-options.yml b/.github/workflows/ci-cmake-options.yml
index 61bc5a43..e6515d46 100644
--- a/.github/workflows/ci-cmake-options.yml
+++ b/.github/workflows/ci-cmake-options.yml
@@ -14,6 +14,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
 
     - name: CMake default install
       run: |
diff --git a/.github/workflows/ci-cpack.yml b/.github/workflows/ci-cpack.yml
index 4d0a2c58..1751cf81 100644
--- a/.github/workflows/ci-cpack.yml
+++ b/.github/workflows/ci-cpack.yml
@@ -13,6 +13,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
     - name: Configure CMake
       run: |
         cmake --version
@@ -34,6 +36,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
     - name: Configure CMake
       run: |
         cmake --version
diff --git a/.github/workflows/ci-cppcheck.yml b/.github/workflows/ci-cppcheck.yml
index 81b1b3ea..2d67da1f 100644
--- a/.github/workflows/ci-cppcheck.yml
+++ b/.github/workflows/ci-cppcheck.yml
@@ -14,6 +14,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
     - name: cppcheck_script
       run: |
         sh ${{ github.workspace }}/scripts/cppcheck.sh . `getconf _NPROCESSORS_ONLN`
diff --git a/.github/workflows/ci-gcc10.yml b/.github/workflows/ci-gcc10.yml
index 562cbde5..7167b8b2 100644
--- a/.github/workflows/ci-gcc10.yml
+++ b/.github/workflows/ci-gcc10.yml
@@ -14,6 +14,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
     - name: Configure CMake
       run: |
         cmake --version
diff --git a/.github/workflows/ci-gcc48.yml b/.github/workflows/ci-gcc48.yml
index acc49b74..16032f36 100644
--- a/.github/workflows/ci-gcc48.yml
+++ b/.github/workflows/ci-gcc48.yml
@@ -14,6 +14,11 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - name: install simdjson
+      uses: actions/checkout@v2
+      with:
+        repository: simdjson/simdjson
+        path: src/simdjson
     - name: Configure CMake
       run: |
         cmake --version
diff --git a/.github/workflows/ci-gcc5.yml b/.github/workflows/ci-gcc5.yml
index d0f27721..7d6cae55 100644
--- a/.github/workflows/ci-gcc5.yml
+++ b/.github/workflows/ci-gcc5.yml
@@ -14,6 +14,11 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - name: install simdjson
+      uses: actions/checkout@v2
+      with:
+        repository: simdjson/simdjson
+        path: src/simdjson
     - name: Configure CMake
       run: |
         cmake --version
diff --git a/.github/workflows/ci-gcc7.yml b/.github/workflows/ci-gcc7.yml
index 76f25044..ac3a0b42 100644
--- a/.github/workflows/ci-gcc7.yml
+++ b/.github/workflows/ci-gcc7.yml
@@ -14,6 +14,11 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - name: install simdjson
+      uses: actions/checkout@v2
+      with:
+        repository: simdjson/simdjson
+        path: src/simdjson
     - name: Configure CMake
       run: |
         cmake --version
diff --git a/.github/workflows/ci-gcc9.yml b/.github/workflows/ci-gcc9.yml
index eb132d90..8d39f243 100644
--- a/.github/workflows/ci-gcc9.yml
+++ b/.github/workflows/ci-gcc9.yml
@@ -14,6 +14,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
     - name: Configure CMake
       run: |
         cmake --version
diff --git a/.github/workflows/ci-kw-linux-report.yml b/.github/workflows/ci-kw-linux-report.yml
index 2cd4631e..523787da 100644
--- a/.github/workflows/ci-kw-linux-report.yml
+++ b/.github/workflows/ci-kw-linux-report.yml
@@ -10,6 +10,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
     - name: kw
       run: |
         mkdir build
diff --git a/.github/workflows/ci-kw-linux.yml b/.github/workflows/ci-kw-linux.yml
index 5bc5df1e..d1bb4620 100644
--- a/.github/workflows/ci-kw-linux.yml
+++ b/.github/workflows/ci-kw-linux.yml
@@ -14,6 +14,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
     - name: kw
       run: |
         mkdir build
diff --git a/.github/workflows/ci-kw-windows-report.yml b/.github/workflows/ci-kw-windows-report.yml
index b4c5c1e2..80b726cb 100644
--- a/.github/workflows/ci-kw-windows-report.yml
+++ b/.github/workflows/ci-kw-windows-report.yml
@@ -10,7 +10,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    
+      with:
+        submodules: recursive
+
     - name: Add MSBuild to PATH
       uses: microsoft/setup-msbuild@v1.0.2
     
diff --git a/.github/workflows/ci-kw-windows.yml b/.github/workflows/ci-kw-windows.yml
index 37e3c05f..02bf54dc 100644
--- a/.github/workflows/ci-kw-windows.yml
+++ b/.github/workflows/ci-kw-windows.yml
@@ -14,7 +14,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    
+      with:
+        submodules: recursive
+
     - name: Add MSBuild to PATH
       uses: microsoft/setup-msbuild@v1.0.2
     
diff --git a/.github/workflows/ci-test.yml b/.github/workflows/ci-test.yml
index d0624a1f..d8a6d257 100644
--- a/.github/workflows/ci-test.yml
+++ b/.github/workflows/ci-test.yml
@@ -14,6 +14,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
     - name: Configure CMake
       run: |
         cmake --version
diff --git a/.github/workflows/ci-windows.yml b/.github/workflows/ci-windows.yml
index 6a21966f..f1b1ddb8 100644
--- a/.github/workflows/ci-windows.yml
+++ b/.github/workflows/ci-windows.yml
@@ -17,6 +17,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
     - name: Configure CMake
       run: |
         if (Test-Path ${{github.workspace}}\build){ Remove-Item ${{github.workspace}}\build -Recurse }
diff --git a/.github/workflows/clang_scan.yml b/.github/workflows/clang_scan.yml
index df2ebdf4..59198c3d 100644
--- a/.github/workflows/clang_scan.yml
+++ b/.github/workflows/clang_scan.yml
@@ -25,6 +25,8 @@ jobs:
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v2
+        with:
+          submodules: recursive
 
       # Runs a set of commands using the runners shell
       - name: preparation
diff --git a/.github/workflows/cppcheck.yml b/.github/workflows/cppcheck.yml
index a03d2a73..0af6120d 100644
--- a/.github/workflows/cppcheck.yml
+++ b/.github/workflows/cppcheck.yml
@@ -24,6 +24,8 @@ jobs:
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v2
+        with:
+          submodules: recursive
 
       # Runs a set of commands using the runners shell
       - name: cppcheck
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 605cfd5e..c2238536 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -17,6 +17,8 @@ jobs:
 
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+          submodules: recursive
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1
diff --git a/.github/workflows/linux_make.yml b/.github/workflows/linux_make.yml
index 482229b8..56a80e24 100644
--- a/.github/workflows/linux_make.yml
+++ b/.github/workflows/linux_make.yml
@@ -40,11 +40,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - name: install simdjson
-      uses: actions/checkout@v2
       with:
-        repository: simdjson/simdjson
-        path: src/simdjson
+        submodules: recursive
     - name: cmake
       run: |
         rm -rf ${{ github.workspace }}/build
diff --git a/.github/workflows/macos-scan-build.yml b/.github/workflows/macos-scan-build.yml
index fc48f459..e4cbe58f 100644
--- a/.github/workflows/macos-scan-build.yml
+++ b/.github/workflows/macos-scan-build.yml
@@ -13,11 +13,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: install simdjson
-      uses: actions/checkout@v2
       with:
-        repository: simdjson/simdjson
-        path: src/simdjson
+        submodules: recursive
     - name: cmake
       run: |
         rm -rf ${{ github.workspace }}/build
diff --git a/.github/workflows/macosx_build.yml b/.github/workflows/macosx_build.yml
index 878f5354..d44170a5 100644
--- a/.github/workflows/macosx_build.yml
+++ b/.github/workflows/macosx_build.yml
@@ -13,11 +13,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: install simdjson
-      uses: actions/checkout@v2
       with:
-        repository: simdjson/simdjson
-        path: src/simdjson    
+        submodules: recursive
     - name: cmake
       run: |
         rm -rf ${{ github.workspace }}/build