diff --git a/utils/webassembly/ci-mac.sh b/utils/webassembly/ci-mac.sh
index c9caa6b29787e..c59f8351a6e8e 100755
--- a/utils/webassembly/ci-mac.sh
+++ b/utils/webassembly/ci-mac.sh
@@ -2,10 +2,8 @@
 
 set -ex
 
-brew install cmake ninja llvm python@2
-
-# Install six for python3 migration
-pip2 install six
+brew uninstall python@2 || true
+brew install cmake ninja llvm
 
 SOURCE_PATH="$( cd "$(dirname $0)/../../.." && pwd  )" 
 SWIFT_PATH=$SOURCE_PATH/swift