diff --git a/frontend/src/loadPostHogJS.tsx b/frontend/src/loadPostHogJS.tsx
index 82187898fffc2..2acd266241f82 100644
--- a/frontend/src/loadPostHogJS.tsx
+++ b/frontend/src/loadPostHogJS.tsx
@@ -54,7 +54,7 @@ export function loadPostHogJS(): void {
         // This is a helpful flag to set to automatically reset the recording session on load for testing multiple recordings
         const shouldResetSessionOnLoad = posthog.getFeatureFlag(FEATURE_FLAGS.SESSION_RESET_ON_LOAD)
         if (shouldResetSessionOnLoad) {
-            posthog.sessionManager.resetSessionId()
+            posthog.sessionManager?.resetSessionId()
         }
         // Make sure we have access to the object in window for debugging
         window.posthog = posthog
diff --git a/package.json b/package.json
index a161de89d2a47..1fee283b008d2 100644
--- a/package.json
+++ b/package.json
@@ -125,7 +125,7 @@
         "kea-window-values": "^3.0.0",
         "md5": "^2.3.0",
         "monaco-editor": "^0.39.0",
-        "posthog-js": "1.77.3",
+        "posthog-js": "1.78.1",
         "posthog-js-lite": "2.0.0-alpha5",
         "prettier": "^2.8.8",
         "prop-types": "^15.7.2",
diff --git a/playwright/e2e-vrt/layout/Navigation.spec.ts-snapshots/Navigation-App-Page-With-Side-Bar-Hidden-Mobile-1-chromium-linux.png b/playwright/e2e-vrt/layout/Navigation.spec.ts-snapshots/Navigation-App-Page-With-Side-Bar-Hidden-Mobile-1-chromium-linux.png
index f2f4a2272d4ce..3b185216c6362 100644
Binary files a/playwright/e2e-vrt/layout/Navigation.spec.ts-snapshots/Navigation-App-Page-With-Side-Bar-Hidden-Mobile-1-chromium-linux.png and b/playwright/e2e-vrt/layout/Navigation.spec.ts-snapshots/Navigation-App-Page-With-Side-Bar-Hidden-Mobile-1-chromium-linux.png differ
diff --git a/playwright/e2e-vrt/layout/Navigation.spec.ts-snapshots/Navigation-App-Page-With-Side-Bar-Shown-Mobile-1-chromium-linux.png b/playwright/e2e-vrt/layout/Navigation.spec.ts-snapshots/Navigation-App-Page-With-Side-Bar-Shown-Mobile-1-chromium-linux.png
index f72434f5d4722..ed5bf402c776b 100644
Binary files a/playwright/e2e-vrt/layout/Navigation.spec.ts-snapshots/Navigation-App-Page-With-Side-Bar-Shown-Mobile-1-chromium-linux.png and b/playwright/e2e-vrt/layout/Navigation.spec.ts-snapshots/Navigation-App-Page-With-Side-Bar-Shown-Mobile-1-chromium-linux.png differ
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 87a91501ffe04..52699fa9c3fb3 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -195,8 +195,8 @@ dependencies:
     specifier: ^0.39.0
     version: 0.39.0
   posthog-js:
-    specifier: 1.77.3
-    version: 1.77.3
+    specifier: 1.78.1
+    version: 1.78.1
   posthog-js-lite:
     specifier: 2.0.0-alpha5
     version: 2.0.0-alpha5
@@ -973,8 +973,8 @@ packages:
     dependencies:
       '@babel/types': 7.22.10
 
-  /@babel/parser@7.22.15:
-    resolution: {integrity: sha512-RWmQ/sklUN9BvGGpCDgSubhHWfAx24XDTDObup4ffvxaYsptOg2P3KG0j+1eWKLxpkX0j0uHxmpq2Z1SP/VhxA==}
+  /@babel/parser@7.22.16:
+    resolution: {integrity: sha512-+gPfKv8UWeKKeJTUxe59+OobVcrYHETCsORl61EmSkmgymguYk/X5bp7GuUIXaFsc6y++v8ZxPsLSSuujqDphA==}
     engines: {node: '>=6.0.0'}
     hasBin: true
     dependencies:
@@ -5720,7 +5720,7 @@ packages:
   /@types/babel__core@7.20.1:
     resolution: {integrity: sha512-aACu/U/omhdk15O4Nfb+fHgH/z3QsfQzpnvRZhYhThms83ZnAOZz7zZAWO7mn2yyNQaA4xTO8GLK3uqFU4bYYw==}
     dependencies:
-      '@babel/parser': 7.22.15
+      '@babel/parser': 7.22.16
       '@babel/types': 7.22.15
       '@types/babel__generator': 7.6.4
       '@types/babel__template': 7.4.1
@@ -14909,8 +14909,8 @@ packages:
     resolution: {integrity: sha512-tlkBdypJuvK/s00n4EiQjwYVfuuZv6vt8BF3g1ooIQa2Gz9Vz80p8q3qsPLZ0V5ErGRy6i3Q4fWC9TDzR7GNRQ==}
     dev: false
 
-  /posthog-js@1.77.3:
-    resolution: {integrity: sha512-DKsGpBIUjQSihhGruEW8wpVCkeDxU4jz7gADdXX2jEWV6bl4WpUPxjo1ukidVDFvvc/ihCM5PQWMQrItexdpSA==}
+  /posthog-js@1.78.1:
+    resolution: {integrity: sha512-5tJoF56gGg4B4CSlLbWHuTpi7Ch7wksjCkPonHlQAc61ZZRymTB63tRheCvkcf+Omf8PBkO+2NJ0XEgrkRHE0A==}
     dependencies:
       fflate: 0.4.8
     dev: false