diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f51d39ded0b105fbd4aa70e1c8944f2dc6984dc5..49c9fc42b7a65859f260356887f33320af7a5908 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -365,6 +365,7 @@ test:macos:
     - sudo spctl --master-disable
     # Create a 2GB RAM disk to speed up our tests.
     - sudo diskutil apfs create $(hdiutil attach -nomount ram://4194304) RAMDisk
+    - brew update
     - brew uninstall go
     - brew install cmake go@${GO_VERSION}
     # Older Go versions may be keg-only and thus aren't linked into `PATH` by