diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9a5adfd4..4d9a7411 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,14 @@
+## [v0.5.3] - 2026-10-21
+
+### Bug Fixes
+
+- **security:** Fix 4 security issues in quinn-proto, jsonptr, rand (#619)
+- Bump Rust base builder to  (#625)
+
+[v0.5.2..v0.5.3](https://github.com/elastiflow/mermin/compare/v0.5.2...v0.5.3)
+
+
+
 ## [v0.5.2] - 2026-10-06
 
 ### Bug Fixes
diff --git a/Cargo.lock b/Cargo.lock
index 0b4d5563..1f65105f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1920,7 +1920,7 @@ dependencies = [
 
 [[package]]
 name = "mermin"
-version = "0.5.2"
+version = "0.5.3"
 dependencies = [
  "arc-swap",
  "async-trait",
diff --git a/charts/mermin/Chart.yaml b/charts/mermin/Chart.yaml
index e1865e26..51caa1bd 100644
--- a/charts/mermin/Chart.yaml
+++ b/charts/mermin/Chart.yaml
@@ -3,8 +3,8 @@ name: mermin
 description: A Helm chart for deploying the Mermin eBPF agent
 icon: https://res.cloudinary.com/elastiflow-cloudinary/image/upload/v1746227898/mermin-horizontal_kxhvzo.png
 type: application
-version: 0.5.2
-appVersion: "0.5.2"
+version: 0.5.3
+appVersion: "0.5.3"
 sources:
   - https://github.com/elastiflow/mermin
 maintainers:
diff --git a/mermin/Cargo.toml b/mermin/Cargo.toml
index e5301ecf..502671db 100644
--- a/mermin/Cargo.toml
+++ b/mermin/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mermin"
-version = "0.5.2"
+version = "0.5.3"
 edition = "2024"
 description = "An eBPF-based observability tool to monitor network traffic and system calls."