diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index cb3a662..4a46db4 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.4.20"
+  ".": "0.4.21"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 88c8ab7..15cb411 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.4.21](https://github.com/statnett/k3a-lag-exporter/compare/v0.4.20...v0.4.21) (2024-12-13)
+
+
+### Bug Fixes
+
+* **deps:** update prometheus.version to v1.3.5 ([#258](https://github.com/statnett/k3a-lag-exporter/issues/258)) ([074964b](https://github.com/statnett/k3a-lag-exporter/commit/074964b8774cc826cf5ae2a5df24bb386822ce33))
+
 ## [0.4.20](https://github.com/statnett/k3a-lag-exporter/compare/v0.4.19...v0.4.20) (2024-11-28)
 
 
diff --git a/pom.xml b/pom.xml
index 01819d8..453aaa4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>io.statnett.k3a</groupId>
     <artifactId>k3a-lag-exporter</artifactId>
-    <version>0.4.21-SNAPSHOT</version>
+    <version>0.4.21</version>
 
     <properties>
         <java.version>21</java.version>