diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 13f53a27..f42ab05e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -130,6 +130,7 @@ jobs:
         cmake -E rename build/pnglibconf.h pnglibconf.h
 
     - name: Install GS1 Syntax Engine
+      shell: bash
       run: |
         git clone --depth=1 https://github.com/gitlost/gs1-syntax-engine && cd gs1-syntax-engine/src/c-lib
         cmake -B build -A Win32 -DCMAKE_BUILD_TYPE=$BUILD_TYPE
@@ -209,14 +210,14 @@ jobs:
       shell: bash
       run: |
         git clone --depth=1 https://github.com/madler/zlib.git zlib && cd zlib
-        cmake -B build -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DZLIB_BUILD_TESTING=OFF -DZLIB_BUILD_SHARED=OFF -DZLIB_BUILD_MINIZIP=OFF -DZLIB_INSTALL_COMPAT_DLL=OFF
+        cmake -B build -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DZLIB_BUILD_TESTING=OFF -DZLIB_BUILD_MINIZIP=OFF
         cd build && make && sudo make install
 
     - name: Install libpng
       shell: bash
       run: |
         git clone --depth=1 https://git.code.sf.net/p/libpng/code lpng && cd lpng
-        cmake -B build -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DPNG_SHARED=OFF -DPNG_TESTS=OFF -DPNG_TOOLS=OFF
+        cmake -B build -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DPNG_TESTS=OFF -DPNG_TOOLS=OFF
         cd build && make && sudo make install
 
     - name: Install GS1 Syntax Engine