diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3a754c6b92..14baf6f01d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 3.11.1 / 2026-04-07
+
+- [BUGFIX] Tracing: Fix startup failure for OTLP HTTP tracing with `insecure: true`. #18469
+
 ## 3.11.0 / 2026-04-02
 
 - [CHANGE] Hetzner SD: The `__meta_hetzner_datacenter` label is deprecated for the role `robot` but kept for backward compatibility, use the `__meta_hetzner_robot_datacenter` label instead. For the role `hcloud`, the label is deprecated and will stop working after the 1 July 2026. #17850
diff --git a/VERSION b/VERSION
index afad818663..371cfe355d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.11.0
+3.11.1
diff --git a/web/ui/mantine-ui/package.json b/web/ui/mantine-ui/package.json
index 03820cbc0f..7b2b5acfa9 100644
--- a/web/ui/mantine-ui/package.json
+++ b/web/ui/mantine-ui/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@prometheus-io/mantine-ui",
   "private": true,
-  "version": "0.311.0",
+  "version": "0.311.1",
   "type": "module",
   "scripts": {
     "start": "vite",
@@ -28,7 +28,7 @@
     "@microsoft/fetch-event-source": "^2.0.1",
     "@nexucis/fuzzy": "^0.5.1",
     "@nexucis/kvsearch": "^0.9.1",
-    "@prometheus-io/codemirror-promql": "0.311.0",
+    "@prometheus-io/codemirror-promql": "0.311.1",
     "@reduxjs/toolkit": "^2.11.2",
     "@tabler/icons-react": "^3.40.0",
     "@tanstack/react-query": "^5.95.2",
diff --git a/web/ui/module/codemirror-promql/package.json b/web/ui/module/codemirror-promql/package.json
index f0c923fa41..fc7de423a3 100644
--- a/web/ui/module/codemirror-promql/package.json
+++ b/web/ui/module/codemirror-promql/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@prometheus-io/codemirror-promql",
-  "version": "0.311.0",
+  "version": "0.311.1",
   "description": "a CodeMirror mode for the PromQL language",
   "types": "dist/esm/index.d.ts",
   "module": "dist/esm/index.js",
@@ -29,7 +29,7 @@
   },
   "homepage": "https://github.com/prometheus/prometheus/blob/main/web/ui/module/codemirror-promql/README.md",
   "dependencies": {
-    "@prometheus-io/lezer-promql": "0.311.0",
+    "@prometheus-io/lezer-promql": "0.311.1",
     "lru-cache": "^11.2.7"
   },
   "devDependencies": {
diff --git a/web/ui/module/lezer-promql/package.json b/web/ui/module/lezer-promql/package.json
index a9746065f6..6b7238522c 100644
--- a/web/ui/module/lezer-promql/package.json
+++ b/web/ui/module/lezer-promql/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@prometheus-io/lezer-promql",
-  "version": "0.311.0",
+  "version": "0.311.1",
   "description": "lezer-based PromQL grammar",
   "main": "dist/index.cjs",
   "type": "module",
diff --git a/web/ui/package-lock.json b/web/ui/package-lock.json
index 934830a1ef..67636d8609 100644
--- a/web/ui/package-lock.json
+++ b/web/ui/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "prometheus-io",
-  "version": "0.311.0",
+  "version": "0.311.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "prometheus-io",
-      "version": "0.311.0",
+      "version": "0.311.1",
       "workspaces": [
         "mantine-ui",
         "module/*"
@@ -24,7 +24,7 @@
     },
     "mantine-ui": {
       "name": "@prometheus-io/mantine-ui",
-      "version": "0.311.0",
+      "version": "0.311.1",
       "dependencies": {
         "@codemirror/autocomplete": "^6.20.1",
         "@codemirror/language": "^6.12.3",
@@ -42,7 +42,7 @@
         "@microsoft/fetch-event-source": "^2.0.1",
         "@nexucis/fuzzy": "^0.5.1",
         "@nexucis/kvsearch": "^0.9.1",
-        "@prometheus-io/codemirror-promql": "0.311.0",
+        "@prometheus-io/codemirror-promql": "0.311.1",
         "@reduxjs/toolkit": "^2.11.2",
         "@tabler/icons-react": "^3.40.0",
         "@tanstack/react-query": "^5.95.2",
@@ -172,10 +172,10 @@
     },
     "module/codemirror-promql": {
       "name": "@prometheus-io/codemirror-promql",
-      "version": "0.311.0",
+      "version": "0.311.1",
       "license": "Apache-2.0",
       "dependencies": {
-        "@prometheus-io/lezer-promql": "0.311.0",
+        "@prometheus-io/lezer-promql": "0.311.1",
         "lru-cache": "^11.2.7"
       },
       "devDependencies": {
@@ -205,7 +205,7 @@
     },
     "module/lezer-promql": {
       "name": "@prometheus-io/lezer-promql",
-      "version": "0.311.0",
+      "version": "0.311.1",
       "license": "Apache-2.0",
       "devDependencies": {
         "@lezer/generator": "^1.8.0",
diff --git a/web/ui/package.json b/web/ui/package.json
index c067bde583..cd2e902c89 100644
--- a/web/ui/package.json
+++ b/web/ui/package.json
@@ -1,7 +1,7 @@
 {
   "name": "prometheus-io",
   "description": "Monorepo for the Prometheus UI",
-  "version": "0.311.0",
+  "version": "0.311.1",
   "private": true,
   "scripts": {
     "build": "bash build_ui.sh --all",