diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0b1957303426e89ec5571e97e5afd78b14de6f11..87e56dc1451f10d842b65dce74b6f49b4dec4799 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [4.2.1](https://gitlab.com/to-be-continuous/sonar/compare/4.2.0...4.2.1) (2024-1-30)
+
+
+### Bug Fixes
+
+* sanitize variable substitution pattern ([66c257c](https://gitlab.com/to-be-continuous/sonar/commit/66c257c8c4763c1c6e08d0b56a2c225f26270cc3)), closes [#21](https://gitlab.com/to-be-continuous/sonar/issues/21)
+
 # [4.2.0](https://gitlab.com/to-be-continuous/sonar/compare/4.1.1...4.2.0) (2024-1-27)
 
 
diff --git a/README.md b/README.md
index 029bdc6872d6bb8e6f5971b8ff66901f4bdd9520..eb45f56d36122db16e79d49e293a7ad65b593f81 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ Add the following to your `gitlab-ci.yml`:
 ```yaml
 include:
   # 1: include the component
-  - component: gitlab.com/to-be-continuous/sonar/gitlab-ci-sonar@4.2.0
+  - component: gitlab.com/to-be-continuous/sonar/gitlab-ci-sonar@4.2.1
     # 2: set/override component inputs
     inputs:
       host-url: https://sonarqube.acme.host # âš  this is only an example
@@ -30,7 +30,7 @@ Add the following to your `gitlab-ci.yml`:
 include:
   # 1: include the template
   - project: 'to-be-continuous/sonar'
-    ref: '4.2.0'
+    ref: '4.2.1'
     file: '/templates/gitlab-ci-sonar.yml'
 
 variables:
@@ -115,9 +115,9 @@ With:
 ```yaml
 include:
   # main template
-  - component: gitlab.com/to-be-continuous/sonar/gitlab-ci-sonar@4.2.0
+  - component: gitlab.com/to-be-continuous/sonar/gitlab-ci-sonar@4.2.1
   # Vault variant
-  - component: gitlab.com/to-be-continuous/sonar/gitlab-ci-sonar-vault@4.2.0
+  - component: gitlab.com/to-be-continuous/sonar/gitlab-ci-sonar-vault@4.2.1
     inputs:
        # audience claim for JWT
       vault-oidc-aud: "https://vault.acme.host"