diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 7df8f4b7..80bf5d63 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -10,10 +10,10 @@ jobs:
       matrix:
         build-type: [ Release, RelWithDebInfo ]
         compiler: [
-            { cxx: g++-11, pkgs: g++-11 libtbb-dev },
-            { cxx: g++-12, pkgs: g++-12 libtbb-dev },
-            { cxx: clang++-14, pkgs: clang-14 libtbb-dev },
-            { cxx: clang++-15, pkgs: clang-15 libtbb-dev },
+            { cxx: g++-11, pkgs: g++-11 libtbb-dev gdb },
+            { cxx: g++-12, pkgs: g++-12 libtbb-dev gdb },
+            { cxx: clang++-14, pkgs: clang-14 libtbb-dev gdb },
+            { cxx: clang++-15, pkgs: clang-15 libtbb-dev gdb },
         ]
         
     defaults:
@@ -43,7 +43,7 @@ jobs:
       run: cmake --build . --parallel
     
     - name: run-tests
-      run: ctest --output-on-failure --schedule-random
+      run: gdb -ex run ./unit_tests --args schedule-random
 
     - name: install
       run: sudo cmake --install .
diff --git a/.github/workflows/sanitizers.yml b/.github/workflows/sanitizers.yml
index d92e1e44..acaafa87 100644
--- a/.github/workflows/sanitizers.yml
+++ b/.github/workflows/sanitizers.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        sanitizer: [ address, undefined ]
+        sanitizer: [ address, undefined, thread ]
         include:
           - cxx: clang++-15
             pkgs: clang-15 llvm-15 libtbb-dev