diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dfe6ad6..39bf05b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -65,7 +65,7 @@ jobs:
           composer --working-dir=tools require roave/backward-compatibility-check:^5
 
       - name: Run roave/backward-compatibility-check
-        run: ./tools/vendor/bin/roave-backward-compatibility-check --from=4.1.2
+        run: ./tools/vendor/bin/roave-backward-compatibility-check --from=4.2.1
 
   tests:
     name: Tests
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a1353d3..bb17cda 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+### 4.2.1 - 2022/Oct/18
+
+* Allow site-alias ^4
+
 ### 4.2.0 - 2022/Feb/18
 
 * Support kubectl transport (#60)