diff --git a/danger/package.json b/danger/package.json
index 4897733dc0..e1797c3eca 100644
--- a/danger/package.json
+++ b/danger/package.json
@@ -1,8 +1,8 @@
 {
   "dependencies": {
-    "danger": "12.3.3",
+    "danger": "12.3.4",
     "endanger": "7.0.4",
-    "typescript": "4.6.2"
+    "typescript": "5.6.3"
   },
   "pnpm": {
     "onlyBuiltDependencies": [
diff --git a/danger/pnpm-lock.yaml b/danger/pnpm-lock.yaml
index 754dd105f8..4635d92df9 100644
--- a/danger/pnpm-lock.yaml
+++ b/danger/pnpm-lock.yaml
@@ -9,14 +9,14 @@ importers:
   .:
     dependencies:
       danger:
-        specifier: 12.3.3
-        version: 12.3.3
+        specifier: 12.3.4
+        version: 12.3.4
       endanger:
         specifier: 7.0.4
-        version: 7.0.4(danger@12.3.3)
+        version: 7.0.4(danger@12.3.4)
       typescript:
-        specifier: 4.6.2
-        version: 4.6.2
+        specifier: 5.6.3
+        version: 5.6.3
 
 packages:
 
@@ -171,8 +171,8 @@ packages:
     resolution: {integrity: sha512-uV2QOWP2nWzsy2aMp8aRibhi9dlzF5Hgh5SHaB9OiTGEyDTiJJyx0uy51QXdyWbtAHNua4XJzUKca3OzKUd3vA==}
     engines: {node: '>= 8'}
 
-  danger@12.3.3:
-    resolution: {integrity: sha512-nZKzpgXN21rr4dwa6bFhM7G2JEa79dZRJiT3RVRSyi4yk1/hgZ2f8HDGoa7tMladTmu8WjJFyE3LpBIihh+aDw==}
+  danger@12.3.4:
+    resolution: {integrity: sha512-esr6iowAryWjWkMzOKyOmMRkamPkDRhC6OAj2tO48i0oobObdP0d8I/YE+qSj9m+/RRcrhaKnysvPL51eW1m3w==}
     engines: {node: '>=18'}
     hasBin: true
 
@@ -665,9 +665,9 @@ packages:
   tslib@2.8.1:
     resolution: {integrity: sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==}
 
-  typescript@4.6.2:
-    resolution: {integrity: sha512-HM/hFigTBHZhLXshn9sN37H085+hQGeJHJ/X7LpBWLID/fbc2acUMfU+lGD98X81sKP+pFa9f0DZmCwB9GnbAg==}
-    engines: {node: '>=4.2.0'}
+  typescript@5.6.3:
+    resolution: {integrity: sha512-hjcS1mhfuyi4WW8IWtjP7brDrG2cuDZukyrYrSauoXGNgx0S7zceP07adYkJycEr56BOUTNPzbInooiN3fn1qw==}
+    engines: {node: '>=14.17'}
     hasBin: true
 
   unified@9.2.2:
@@ -917,7 +917,7 @@ snapshots:
       shebang-command: 2.0.0
       which: 2.0.2
 
-  danger@12.3.3:
+  danger@12.3.4:
     dependencies:
       '@gitbeaker/rest': 38.12.1
       '@octokit/rest': 18.12.0
@@ -976,10 +976,10 @@ snapshots:
     dependencies:
       safe-buffer: 5.2.1
 
-  endanger@7.0.4(danger@12.3.3):
+  endanger@7.0.4(danger@12.3.4):
     dependencies:
       callsites: 3.1.0
-      danger: 12.3.3
+      danger: 12.3.4
       execa: 5.1.1
       intl-messageformat: 9.13.0
       memoize-one: 5.2.1
@@ -1480,7 +1480,7 @@ snapshots:
 
   tslib@2.8.1: {}
 
-  typescript@4.6.2: {}
+  typescript@5.6.3: {}
 
   unified@9.2.2:
     dependencies:
diff --git a/danger/rules.ts b/danger/rules.ts
index 007e3d53b0..134bc7c9a9 100644
--- a/danger/rules.ts
+++ b/danger/rules.ts
@@ -5,6 +5,7 @@ import { run } from 'endanger';
 
 import migrateBackboneToRedux from './rules/migrateBackboneToRedux';
 import packageJsonVersionsShouldBePinned from './rules/packageJsonVersionsShouldBePinned';
+import pnpmLockDepsShouldHaveIntegrity from './rules/pnpmLockDepsShouldHaveIntegrity';
 
 function isGitDeletedError(error: unknown) {
   return (
@@ -17,7 +18,11 @@ function isGitDeletedError(error: unknown) {
 
 async function main() {
   try {
-    await run(migrateBackboneToRedux(), packageJsonVersionsShouldBePinned());
+    await run(
+      migrateBackboneToRedux(),
+      packageJsonVersionsShouldBePinned(),
+      pnpmLockDepsShouldHaveIntegrity()
+    );
   } catch (error: unknown) {
     if (!isGitDeletedError(error)) {
       throw error;
diff --git a/danger/rules/pnpmLockDepsShouldHaveIntegrity.ts b/danger/rules/pnpmLockDepsShouldHaveIntegrity.ts
new file mode 100644
index 0000000000..93a3ada09a
--- /dev/null
+++ b/danger/rules/pnpmLockDepsShouldHaveIntegrity.ts
@@ -0,0 +1,63 @@
+// Copyright 2022 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { Line, Rule } from 'endanger';
+
+function assert(condition: boolean, message: string): asserts condition {
+  if (!condition) {
+    throw new Error(message);
+  }
+}
+
+function isObject(value: unknown): value is object {
+  return typeof value === 'object' && value !== null;
+}
+
+function has<T extends object, const K extends T[any]>(
+  value: T,
+  key: K
+): value is T & Record<K, T[K]> {
+  return Object.hasOwn(value, key);
+}
+
+export default function migrateBackboneToRedux() {
+  return new Rule({
+    match: {
+      files: ['pnpm-lock.yaml'],
+    },
+    messages: {
+      missingIntegrity: `
+        **Dependency resolution missing integrity**
+        All dependencies should have a resolution with an integrity field.
+        You may need to override it or provide it manually.
+
+				See "{name}".
+			`,
+    },
+    async run({ files, context }) {
+      for (const file of files.modifiedOrCreated) {
+        const contents: unknown = await file.yaml();
+
+        assert(
+          isObject(contents) &&
+            has(contents, 'packages') &&
+            isObject(contents.packages),
+          'pnpm.yaml should be object'
+        );
+
+        for (const [name, spec] of Object.entries(contents.packages)) {
+          assert(
+            isObject(spec) &&
+              has(spec, 'resolution') &&
+              isObject(spec.resolution),
+            `${name} spec should be object`
+          );
+
+          if (!has(spec.resolution, 'integrity')) {
+            context.fail('missingIntegrity', { file }, { name });
+          }
+        }
+      }
+    },
+  });
+}