diff --git a/.travis.sh b/.travis.sh
index ba72200d..dc25a4c8 100755
--- a/.travis.sh
+++ b/.travis.sh
@@ -3,5 +3,6 @@
 set -eu
 
 if [[ x$OSTYPE =~ ^xdarwin ]]; then
+  brew update
   brew install "mysql"
-fi
\ No newline at end of file
+fi