diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 603328efe..1b4dab492 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -10,7 +10,6 @@ jobs:
       matrix:
         env:
         - { cc: clang, cxx: clang++, coverage: false }
-        - { cc: gcc, cxx: g++, coverage: false }
         - { cc: gcc, cxx: g++, coverage: true }
     steps:
     - uses: actions/checkout@v4
@@ -90,7 +89,6 @@ jobs:
         qt: [ '6.6.0' ]
         env:
         - { cc: clang, cxx: clang++, coverage: false }
-        - { cc: gcc, cxx: g++, coverage: false }
         - { cc: gcc, cxx: g++, coverage: true }
     steps:
     - uses: actions/checkout@v4
@@ -174,7 +172,6 @@ jobs:
         qt: [ '6.6.0' ]
         env:
         - { cc: clang, cxx: clang++, coverage: false }
-        - { cc: gcc-12, cxx: g++-12, coverage: false }
         - { cc: gcc-12, cxx: g++-12, coverage: true }
         exclude:
           # Exclude Qt 5.10 with GCC on macOS. See https://bugreports.qt.io/browse/QTBUG-66585
@@ -288,20 +285,7 @@ jobs:
         - { arch: x86-64, qt: '5.10.1', generator: 'MinGW Makefiles' }
         - { arch: x86-64, qt: '5.11.3', generator: 'MinGW Makefiles' }
         include: # Override default arch's for install-qt-action and msvc-dev-cmd.
-        - { generator: 'MinGW Makefiles', qt: '5.12.12', qtArch: win64_mingw73 }
-        - { generator: 'MinGW Makefiles', qt: '5.13.2',  qtArch: win64_mingw73 }
-        - { generator: 'MinGW Makefiles', qt: '5.14.2',  qtArch: win64_mingw73 }
-        - { generator: 'MinGW Makefiles', qt: '5.15.2',  qtArch: win64_mingw81 }
-        - { generator: 'MinGW Makefiles', qt: '6.2.4',   qtArch: win64_mingw   }
-        - { generator: 'MinGW Makefiles', qt: '6.3.2',   qtArch: win64_mingw   }
-        - { generator: 'MinGW Makefiles', qt: '6.4.3',   qtArch: win64_mingw   }
-        - { generator: 'MinGW Makefiles', qt: '6.5.2',   qtArch: win64_mingw   }
         - { generator: 'MinGW Makefiles', qt: '6.6.0',   qtArch: win64_mingw   }
-        - { generator: 'NMake Makefiles', arch: x86, qt: '5.9.9',   qtArch: win32_msvc2015 }
-        - { generator: 'NMake Makefiles', arch: x86, qt: '5.11.3',  qtArch: win32_msvc2015 }
-        - { generator: 'NMake Makefiles', arch: x86, qt: '5.12.12', qtArch: win32_msvc2017 }
-        - { generator: 'NMake Makefiles', arch: x86, qt: '5.13.2',  qtArch: win32_msvc2017 }
-        - { generator: 'NMake Makefiles', arch: x86, qt: '5.14.2',  qtArch: win32_msvc2017 }
         - { generator: 'NMake Makefiles', arch: x86, qt: '5.15.2',  qtArch: win32_msvc2019 }
         - { generator: 'NMake Makefiles', arch: arm64,  qtArch: win64_msvc2019_arm64 }
         - { generator: 'NMake Makefiles', arch: arm64,  msvcArch: amd64_arm64 }