diff --git a/ci/cmake.yml b/ci/cmake.yml
index dae54ec..d521769 100644
--- a/ci/cmake.yml
+++ b/ci/cmake.yml
@@ -11,7 +11,7 @@ jobs:
     # The CMake configure and build commands are platform agnostic and should work equally
     # well on Windows or Mac.  You can convert this to a matrix build if you need
     # cross-platform coverage.
-    # See: https://docs.github.com/en/actions/configuring-and-managing-workflows/configuring-a-workflow#configuring-a-build-matrix
+    # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
     runs-on: ubuntu-latest
 
     steps: