diff --git a/.changeset/update-app-version-2.42.0.md b/.changeset/update-app-version-2.42.0.md
new file mode 100644
index 0000000..eb01669
--- /dev/null
+++ b/.changeset/update-app-version-2.42.0.md
@@ -0,0 +1,5 @@
+---
+"helm-charts": patch
+---
+
+chore: update appVersion to 2.42.0
diff --git a/charts/clickstack/Chart.yaml b/charts/clickstack/Chart.yaml
index 53d9701..5e75318 100644
--- a/charts/clickstack/Chart.yaml
+++ b/charts/clickstack/Chart.yaml
@@ -16,7 +16,7 @@ annotations:
       url: https://github.com/hyperdxio/hyperdx
 type: application
 version: 3.4.0
-appVersion: 2.39.1
+appVersion: 2.42.0
 dependencies:
   - name: opentelemetry-collector
     version: ~0.146.0
diff --git a/charts/clickstack/values.yaml b/charts/clickstack/values.yaml
index 991d788..6c91b08 100644
--- a/charts/clickstack/values.yaml
+++ b/charts/clickstack/values.yaml
@@ -488,7 +488,7 @@ otel-collector:
   mode: deployment
   image:
     repository: docker.clickhouse.com/clickhouse/clickstack-otel-collector
-    tag: "2.39.1"
+    tag: "2.42.0"
   extraEnvsFrom:
     - configMapRef:
         name: clickstack-config