diff --git a/CHANGELOG.md b/CHANGELOG.md
index 51addc4..6d78334 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [5.1.2](https://github.com/storacha/gateway-lib/compare/v5.1.1...v5.1.2) (2024-09-10)
+
+
+### Bug Fixes
+
+* content length for byte range requests ([9248917](https://github.com/storacha/gateway-lib/commit/9248917100f843fca1a988696ee3ccdcd666466e))
+
 ## [5.1.1](https://github.com/storacha/gateway-lib/compare/v5.1.0...v5.1.1) (2024-09-10)
 
 
diff --git a/package-lock.json b/package-lock.json
index b3ab38a..1fd5797 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@web3-storage/gateway-lib",
-  "version": "5.1.1",
+  "version": "5.1.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@web3-storage/gateway-lib",
-      "version": "5.1.1",
+      "version": "5.1.2",
       "license": "Apache-2.0 OR MIT",
       "dependencies": {
         "@httpland/range-parser": "^1.2.0",
diff --git a/package.json b/package.json
index 8d2b435..11c5156 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@web3-storage/gateway-lib",
-  "version": "5.1.1",
+  "version": "5.1.2",
   "description": "Shared library of components for building an IPFS gateway in Cloudflare workers.",
   "main": "src/index.js",
   "type": "module",