diff --git a/CI/macos/before_install.amd64.sh b/CI/macos/before_install.amd64.sh
index 5ed4f23b21..1cf403e5ea 100755
--- a/CI/macos/before_install.amd64.sh
+++ b/CI/macos/before_install.amd64.sh
@@ -1,8 +1,12 @@
 #!/bin/sh -ex
 
-arch -x86_64 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+command -v /usr/local/bin/brew || arch -x86_64 bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
 
-arch -x86_64 /usr/local/bin/brew install curl xquartz gd fontconfig freetype harfbuzz brotli ccache cmake qt@6 openal-soft icu4c yaml-cpp sqlite
+arch -x86_64 bash -c "command -v ccache || /usr/local/bin/brew install ccache"
+arch -x86_64 bash -c "command -v cmake >/dev/null 2>&1 || /usr/local/bin/brew install cmake"
+arch -x86_64 bash -c "command -v qmake >/dev/null 2>&1 && qmake -v | grep -F 'Using Qt version 6.' >/dev/null || /usr/local/bin/brew install qt@6"
+
+arch -x86_64 /usr/local/bin/brew install curl xquartz gd fontconfig freetype harfbuzz brotli openal-soft icu4c yaml-cpp sqlite
 
 curl -fSL -R -J https://gitlab.com/OpenMW/openmw-deps/-/raw/main/macos/openmw-deps-20240802.zip -o ~/openmw-deps.zip
 unzip -o ~/openmw-deps.zip -d /tmp > /dev/null
diff --git a/CI/macos/before_install.arm64.sh b/CI/macos/before_install.arm64.sh
index d1fb572f01..6939fb3a2d 100755
--- a/CI/macos/before_install.arm64.sh
+++ b/CI/macos/before_install.arm64.sh
@@ -3,9 +3,11 @@
 brew tap --repair
 brew update --quiet
 
+command -v ccache >/dev/null 2>&1 || brew install ccache
 command -v cmake >/dev/null 2>&1 || brew install cmake
+command -v qmake >/dev/null 2>&1 && qmake -v | grep -F "Using Qt version 6." >/dev/null || brew install qt@6
 
-brew install curl xquartz gd fontconfig freetype harfbuzz brotli qt@6 ccache openal-soft icu4c yaml-cpp sqlite
+brew install curl xquartz gd fontconfig freetype harfbuzz brotli openal-soft icu4c yaml-cpp sqlite
 
 curl -fSL -R -J https://gitlab.com/OpenMW/openmw-deps/-/raw/main/macos/openmw-deps-20240818-arm64.tar.xz -o ~/openmw-deps.tar.xz
 tar xf ~/openmw-deps.tar.xz -C /tmp > /dev/null