diff --git a/Library/Homebrew/cmd/update.sh b/Library/Homebrew/cmd/update.sh
index 6e68cdea8c..30ba7cec96 100644
--- a/Library/Homebrew/cmd/update.sh
+++ b/Library/Homebrew/cmd/update.sh
@@ -482,7 +482,7 @@ EOS
         fi
 
         UPSTREAM_SHA_HTTP_CODE="$("$HOMEBREW_CURL" --silent --max-time 3 \
-           --output /dev/null --write-out "%{http_code}" \
+           --location --output /dev/null --write-out "%{http_code}" \
            --dump-header "$DIR/.git/GITHUB_HEADERS" \
            --user-agent "$HOMEBREW_USER_AGENT_CURL" \
            --header "Accept: $GITHUB_API_ACCEPT" \