diff --git a/CI/before_install.osx.sh b/CI/before_install.osx.sh
index ba269ae0e0..92d0a600fb 100755
--- a/CI/before_install.osx.sh
+++ b/CI/before_install.osx.sh
@@ -13,7 +13,6 @@ 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 || brew install qt@5
-brew install icu4c
 brew install yaml-cpp
 export PATH="/usr/local/opt/qt@5/bin:$PATH"  # needed to use qmake in none default path as qt now points to qt6