diff --git a/CHANGELOG.md b/CHANGELOG.md
index f16c1d94..e5fbba1d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- Bump `@metamask/auto-changelog` from `^5.1.0` to `^5.2.0`
+  - Adds deduplication for commits with no PR number in subject (non-"Squash & Merge" commits)
+  - Merge commits are now deduplicated using commit body instead of the generic merge subject
+
 ## [1.0.0]
 
 ### Added
diff --git a/package.json b/package.json
index e0440082..ef776f54 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "update-release-sheet": "node .github/scripts/update-release-sheet.mjs"
   },
   "dependencies": {
-    "@metamask/auto-changelog": "^5.1.0",
+    "@metamask/auto-changelog": "^5.2.0",
     "@metamask/utils": "^7.1.0",
     "@octokit/graphql": "^7.0.1",
     "@octokit/request": "^8.1.1",
diff --git a/yarn.lock b/yarn.lock
index e2ff0012..1d0a9ce5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -941,9 +941,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@metamask/auto-changelog@npm:^5.1.0":
-  version: 5.1.0
-  resolution: "@metamask/auto-changelog@npm:5.1.0"
+"@metamask/auto-changelog@npm:^5.2.0":
+  version: 5.2.0
+  resolution: "@metamask/auto-changelog@npm:5.2.0"
   dependencies:
     "@octokit/rest": "npm:^20.0.0"
     diff: "npm:^5.0.0"
@@ -954,7 +954,7 @@ __metadata:
     prettier: ">=3.0.0"
   bin:
     auto-changelog: dist/cli.mjs
-  checksum: 10/ee9f651c313a2377a21a304383f56f1872b4ce6411a0b61cf0b70b23bff9d3204332cd5a052cdfcaf363ce15424a7a1fdbde99a6b4352f2472fbe6b6d27c5791
+  checksum: 10/86ca4f56a0c86a1fabbe4b7b66a28bda39e59c51c996aadedeb5f341b3e93acfd7ca5dafebbd82852070f12324bbd83fc7cb979cb9f8b9ca8f5dded53f1fa5af
   languageName: node
   linkType: hard
 
@@ -1014,7 +1014,7 @@ __metadata:
   dependencies:
     "@lavamoat/allow-scripts": "npm:^2.3.1"
     "@lavamoat/preinstall-always-fail": "npm:^1.0.0"
-    "@metamask/auto-changelog": "npm:^5.1.0"
+    "@metamask/auto-changelog": "npm:^5.2.0"
     "@metamask/eslint-config": "npm:^12.0.0"
     "@metamask/eslint-config-jest": "npm:^12.0.0"
     "@metamask/eslint-config-nodejs": "npm:^12.0.0"