diff --git a/CI/before_install.osx.sh b/CI/before_install.osx.sh
index 3e47d11a1..0a4c7313c 100755
--- a/CI/before_install.osx.sh
+++ b/CI/before_install.osx.sh
@@ -1,9 +1,6 @@
 #!/bin/sh -e
 
 brew update
-brew unlink cmake || true
-brew install https://gist.githubusercontent.com/nikolaykasyanov/f36da224bdef42025e480f99fa21a82d/raw/7dd8b5ed2750198757f81c6bc6456e03541999bd/cmake.rb
-brew switch cmake 3.12.4
 brew outdated pkgconfig || brew upgrade pkgconfig
 brew install qt
 brew install ccache