diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a2a55e..7c4acff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.1.3
+
+- Add automatic session timeout after 1 hour of inactivity
+
 ## 0.1.2
 
 - Added support for automatic segregation of Debug/Release events
diff --git a/package-lock.json b/package-lock.json
index 8ee07c6..841c963 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@aptabase/web",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@aptabase/web",
-      "version": "0.1.2",
+      "version": "0.1.3",
       "license": "MIT",
       "devDependencies": {
         "@rollup/plugin-replace": "5.0.2",
diff --git a/package.json b/package.json
index 78a3fd4..ed40a3d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aptabase/web",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "private": false,
   "type": "module",
   "description": "JavaScript SDK for Aptabase: Open Source, Privacy-First and Simple Analytics for Mobile, Desktop and Web Apps",
diff --git a/src/index.ts b/src/index.ts
index f121707..5ba05b7 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -8,10 +8,13 @@ export type AptabaseOptions = {
   appVersion?: string;
 };
 
-let _appKey = "";
-let _locale = "";
-let _apiUrl = "";
+// Session expires after 1 hour of inactivity
+const SESSION_TIMEOUT = 1 * 60 * 60;
 let _sessionId = newSessionId();
+let _lastTouched = new Date();
+let _appKey = "";
+let _apiUrl = "";
+let _locale = "";
 let _isDebug = false;
 let _options: AptabaseOptions | undefined;
 
@@ -72,6 +75,14 @@ export function trackEvent(
 ) {
   if (!_appKey || typeof window === "undefined" || !window.fetch) return;
 
+  let now = new Date();
+  const diffInMs = now.getTime() - _lastTouched.getTime();
+  const diffInSec = Math.floor(diffInMs / 1000);
+  if (diffInSec > SESSION_TIMEOUT) {
+    _sessionId = newSessionId();
+  }
+  _lastTouched = now;
+
   const body = JSON.stringify({
     timestamp: new Date().toISOString(),
     sessionId: _sessionId,