diff --git a/.github/actions/build/action.yml b/.github/actions/build/action.yml
index 59de40e0..4c12982b 100644
--- a/.github/actions/build/action.yml
+++ b/.github/actions/build/action.yml
@@ -7,4 +7,3 @@ runs:
       run: cmake --build . --config Release --verbose
       shell: bash
       working-directory: build
-
diff --git a/.github/actions/cmake/action.yml b/.github/actions/cmake/action.yml
index ee47e1c4..9b1c1be8 100644
--- a/.github/actions/cmake/action.yml
+++ b/.github/actions/cmake/action.yml
@@ -11,9 +11,7 @@ runs:
         cmake -LA .. \
               -DBUILD_DATA_TESTS=ON \
               -DUSE_CPP_VERSION=${CPP_VERSION} \
-              -DWITH_PROJ=${WITH_PROJ} \
               -DPROTOZERO_INCLUDE_DIR=${GITHUB_WORKSPACE}/../protozero/include \
               -DCMAKE_BUILD_TYPE=${BUILD_TYPE}
       shell: bash
       working-directory: build
-
diff --git a/.github/actions/ctest/action.yml b/.github/actions/ctest/action.yml
index 2f0a8736..2c6da6cf 100644
--- a/.github/actions/ctest/action.yml
+++ b/.github/actions/ctest/action.yml
@@ -7,4 +7,3 @@ runs:
       run: ctest --output-on-failure -C Release
       shell: bash
       working-directory: build
-
diff --git a/.github/actions/install-macos/action.yml b/.github/actions/install-macos/action.yml
index ae5965ec..fca8f14a 100644
--- a/.github/actions/install-macos/action.yml
+++ b/.github/actions/install-macos/action.yml
@@ -3,11 +3,9 @@ name: Install homebrew packages on macOS
 runs:
   using: composite
   steps:
-    - name: Install packages
+    - name: Install homebrew packages
       run: |
         brew install \
           boost \
-          gdal \
-          google-sparsehash
+          gdal
       shell: bash
-
diff --git a/.github/actions/install-ubuntu/action.yml b/.github/actions/install-ubuntu/action.yml
index 50134d29..2129f0b6 100644
--- a/.github/actions/install-ubuntu/action.yml
+++ b/.github/actions/install-ubuntu/action.yml
@@ -13,9 +13,6 @@ runs:
              libgdal-dev \
              libgeos++-dev \
              liblz4-dev \
-             libproj-dev \
-             libsparsehash-dev \
              ruby-json \
              spatialite-bin
       shell: bash
-
diff --git a/.github/workflows/clang-tidy.yml b/.github/workflows/clang-tidy.yml
index bc419c6b..9dd5fed9 100644
--- a/.github/workflows/clang-tidy.yml
+++ b/.github/workflows/clang-tidy.yml
@@ -40,7 +40,6 @@ jobs:
             libgdal-dev \
             libgeos++-dev \
             liblz4-dev \
-            libsparsehash-dev \
             make \
             zlib1g-dev
         shell: bash