[misc] Fix OpenSSF Scorecard link. (#2583)

diff --git a/README.md b/README.md
index e54aaa5..fd2abb8 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,8 @@
 
 [![Build Status](https://api.cirrus-ci.com/github/flutter/packages.svg)](https://cirrus-ci.com/github/flutter/packages/main)
 [![Release Status](https://github.com/flutter/packages/actions/workflows/release.yml/badge.svg)](https://github.com/flutter/packages/actions/workflows/release.yml)
-[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/flutter/packages/badge)]
+[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/flutter/packages/badge)](https://api.securityscorecards.dev/projects/github.com/flutter/packages)
+
 This repo is a companion repo to the main [flutter repo](
 https://github.com/flutter/flutter). It contains the source code for Flutter's
 first-party packages (i.e., packages developed by the core Flutter team).