diff --git a/.clang-tidy b/.clang-tidy
index 046d84f87..395647e8b 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -1,22 +1,29 @@
 Checks: '*,
          -cppcoreguidelines-avoid-goto,
          -cppcoreguidelines-avoid-magic-numbers,
+         -cppcoreguidelines-avoid-non-const-global-variables,
          -cppcoreguidelines-macro-usage,
+         -cppcoreguidelines-pro-type-union-access,
          -fuchsia-default-arguments-calls,
          -fuchsia-default-arguments-declarations,
          -fuchsia-overloaded-operator,
          -google-explicit-constructor,
+         -google-readability-function-size,
          -google-runtime-references,
          -hicpp-avoid-goto,
          -hicpp-explicit-conversions,
+         -hicpp-function-size,
          -hicpp-no-array-decay,
+         -hicpp-no-assembler,
          -hicpp-uppercase-literal-suffix,
          -llvm-header-guard,
          -llvm-include-order,
          -misc-non-private-member-variables-in-classes,
          -modernize-use-trailing-return-type,
+         -readability-function-size,
          -readability-magic-numbers,
-         -readability-uppercase-literal-suffix'
+         -readability-uppercase-literal-suffix,
+         -llvmlibc-*'
 
 CheckOptions:
   - key: hicpp-special-member-functions.AllowSoleDefaultDtor
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 8036fba2a..10c6fbf26 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -97,3 +97,24 @@ jobs:
         run: cmake -S . -B build -DJSON_CI=On
       - name: build
         run: cmake --build build --target ci_cpplint
+
+  ci_clang_tidy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: install_ninja
+        run: |
+          sudo apt update
+          sudo apt install ninja-build
+        shell: bash
+      - name: install_clang
+        run: |
+          wget https://apt.llvm.org/llvm.sh
+          chmod +x llvm.sh
+          sudo ./llvm.sh 11
+          sudo apt-get install clang-tools-11
+        shell: bash
+      - name: cmake
+        run: cmake -S . -B build -DJSON_CI=On
+      - name: build
+        run: cmake --build build --target ci_clang_tidy || true