diff --git a/.github/workflows/test-cpp-compatibility-check-action.yaml b/.github/workflows/test-cpp-compatibility-check-action.yaml
index aa3b6e2..861d669 100644
--- a/.github/workflows/test-cpp-compatibility-check-action.yaml
+++ b/.github/workflows/test-cpp-compatibility-check-action.yaml
@@ -45,4 +45,4 @@ jobs:
         with:
           os: "linux"
           compiler: "g++"
-          cmake_location: "./.github/dummy-cpp-project/"
+          cmake-location: "./.github/dummy-cpp-project/"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8973d58..d7e6dfd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,10 +10,15 @@ All notable changes to this project will be documented in this file.
 - README for Dummy C++ Project.
 - Status logging in pre-commit action.
 
+### Changed
+
+- Naming convention of variables in actions.
+
 ### Fixed
 
 - Typos in pre-commit action.
 - Move dummy C++ project to .github.
+- Fix libpcre caching issue.
 
 ## [0.2.0] - 2026-02-11
 
diff --git a/cpp-compatibility-check/action.yaml b/cpp-compatibility-check/action.yaml
index 2fc355a..5d6f936 100644
--- a/cpp-compatibility-check/action.yaml
+++ b/cpp-compatibility-check/action.yaml
@@ -34,23 +34,23 @@ inputs:
     description: "Compiler to run the compatibility check."
     required: false
     default: "g++"
-  install_command:
+  install-command:
     description: "Install command to run."
     required: false
     default: ""
-  build_type:
+  build-type:
     description: "Build type of the project"
     required: false
     default: "Release"
-  cmake_location:
+  cmake-location:
     description: "Where CMakeLists.txt is located."
     required: false
     default: "." # Defaults to find at root
-  additional_cmake_args:
+  additional-cmake-args:
     description: "Additional CMake Arguments."
     required: false
     default: ""
-  run_tests:
+  run-tests:
     description: "Whether to run tests or not."
     required: false
     default: "true"
@@ -74,23 +74,23 @@ runs:
         fi
 
     - name: Run install command
-      if: inputs.install_command != ''
+      if: inputs.install-command != ''
       shell: bash
-      run: ${{ inputs.install_command }}
+      run: ${{ inputs.install-command }}
 
     - name: Configure CMake
       shell: bash
       run: |
-        cmake -S ${{ inputs.cmake_location }} -B build \
+        cmake -S ${{ inputs.cmake-location }} -B build \
           -DCMAKE_CXX_COMPILER=${{ inputs.compiler }} \
-          -DCMAKE_BUILD_TYPE=${{ inputs.build_type }} \
-          ${{ inputs.additional_cmake_args }}
+          -DCMAKE_BUILD_TYPE=${{ inputs.build-type }} \
+          ${{ inputs.additional-cmake-args }}
 
     - name: Build
       shell: bash
-      run: cmake --build build --config ${{ inputs.build_type }}
+      run: cmake --build build --config ${{ inputs.build-type }}
 
     - name: Test
-      if: inputs.run_tests == 'true'
+      if: inputs.run-tests == 'true'
       shell: bash
-      run: ctest --output-on-failure --test-dir build -C ${{ inputs.build_type }}
+      run: ctest --output-on-failure --test-dir build -C ${{ inputs.build-type }}