diff --git a/packages/cosmjs/CHANGELOG.md b/packages/cosmjs/CHANGELOG.md
index 713002505..fdfb2c2ce 100644
--- a/packages/cosmjs/CHANGELOG.md
+++ b/packages/cosmjs/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @turnkey/cosmjs
 
+## 0.5.1
+
+### Patch Changes
+
+- Updated dependencies [f87ced8]
+  - @turnkey/http@2.4.1
+
 ## 0.5.0
 
 ### Minor Changes
diff --git a/packages/cosmjs/package.json b/packages/cosmjs/package.json
index aa073aad3..296e9b2d3 100644
--- a/packages/cosmjs/package.json
+++ b/packages/cosmjs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@turnkey/cosmjs",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "main": "./dist/index.js",
   "module": "./dist/index.mjs",
   "exports": {
diff --git a/packages/ethers/CHANGELOG.md b/packages/ethers/CHANGELOG.md
index e657f9ccb..316164959 100644
--- a/packages/ethers/CHANGELOG.md
+++ b/packages/ethers/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @turnkey/ethers
 
+## 0.19.1
+
+### Patch Changes
+
+- Updated dependencies [f87ced8]
+  - @turnkey/http@2.4.1
+
 ## 0.19.0
 
 ### Minor Changes
diff --git a/packages/ethers/package.json b/packages/ethers/package.json
index 866de3471..62084ead1 100644
--- a/packages/ethers/package.json
+++ b/packages/ethers/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@turnkey/ethers",
-  "version": "0.19.0",
+  "version": "0.19.1",
   "main": "./dist/index.js",
   "module": "./dist/index.mjs",
   "exports": {
diff --git a/packages/http/CHANGELOG.md b/packages/http/CHANGELOG.md
index e26526e27..85831b1f5 100644
--- a/packages/http/CHANGELOG.md
+++ b/packages/http/CHANGELOG.md
@@ -1,5 +1,13 @@
 # @turnkey/http
 
+## 2.4.1
+
+### Patch Changes
+
+- Fix universal files to stop using `require`. Use ES6 imports instead (#178)
+- Updated dependencies [f87ced8]
+  - @turnkey/webauthn-stamper@0.4.1
+
 ## 2.4.0
 
 ### Minor Changes
diff --git a/packages/http/package.json b/packages/http/package.json
index 0fca1ec80..b7dca8815 100644
--- a/packages/http/package.json
+++ b/packages/http/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@turnkey/http",
-  "version": "2.4.0",
+  "version": "2.4.1",
   "main": "./dist/index.js",
   "module": "./dist/index.mjs",
   "exports": {
diff --git a/packages/http/src/universal.ts b/packages/http/src/universal.ts
index 80cec62a2..67d68e186 100644
--- a/packages/http/src/universal.ts
+++ b/packages/http/src/universal.ts
@@ -1,10 +1,11 @@
 /// <reference lib="dom" />
+import { fetch as xFetch } from "cross-fetch";
 let fetch: typeof globalThis.fetch;
 
 if (typeof globalThis?.fetch !== "undefined") {
   fetch = globalThis.fetch;
 } else {
-  fetch = require("cross-fetch");
+  fetch = xFetch;
 }
 
 export { fetch };
diff --git a/packages/viem/CHANGELOG.md b/packages/viem/CHANGELOG.md
index 468124e8b..860a140d8 100644
--- a/packages/viem/CHANGELOG.md
+++ b/packages/viem/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @turnkey/viem
 
+## 0.4.1
+
+### Patch Changes
+
+- Updated dependencies [f87ced8]
+  - @turnkey/http@2.4.1
+
 ## 0.4.0
 
 ### Minor Changes
diff --git a/packages/viem/package.json b/packages/viem/package.json
index 7485e3db8..6f9d38926 100644
--- a/packages/viem/package.json
+++ b/packages/viem/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@turnkey/viem",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "main": "./dist/index.js",
   "module": "./dist/index.mjs",
   "exports": {
diff --git a/packages/webauthn-stamper/CHANGELOG.md b/packages/webauthn-stamper/CHANGELOG.md
index 027b4e1c9..9b6d3ae1c 100644
--- a/packages/webauthn-stamper/CHANGELOG.md
+++ b/packages/webauthn-stamper/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @turnkey/webauthn-stamper
 
+## 0.4.1
+
+### Patch Changes
+
+- Fix universal files to stop using `require`. Use ES6 imports instead (#178)
+
 ## 0.4.0
 
 ### Minor Changes
diff --git a/packages/webauthn-stamper/package.json b/packages/webauthn-stamper/package.json
index 79fb73041..004da5cbc 100644
--- a/packages/webauthn-stamper/package.json
+++ b/packages/webauthn-stamper/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@turnkey/webauthn-stamper",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "main": "./dist/index.js",
   "module": "./dist/index.mjs",
   "exports": {
diff --git a/packages/webauthn-stamper/src/universal.ts b/packages/webauthn-stamper/src/universal.ts
index e52043c93..25c66b189 100644
--- a/packages/webauthn-stamper/src/universal.ts
+++ b/packages/webauthn-stamper/src/universal.ts
@@ -1,10 +1,11 @@
 /// <reference lib="dom" />
+import { Buffer as nodeBuffer } from "buffer";
 let buffer: typeof globalThis.Buffer;
 
 if (typeof globalThis?.Buffer !== "undefined") {
   buffer = globalThis.Buffer;
 } else {
-  buffer = require("buffer").Buffer;
+  buffer = nodeBuffer;
 }
 
 export { buffer };