diff --git a/package-lock.json b/package-lock.json
index 80a0248ae3..096669e295 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14215,7 +14215,7 @@
       }
     },
     "packages/ripple-binary-codec": {
-      "version": "2.1.0",
+      "version": "4.0.0-mpt-beta",
       "license": "ISC",
       "dependencies": {
         "@xrplf/isomorphic": "^1.0.1",
@@ -14248,7 +14248,7 @@
       }
     },
     "packages/xrpl": {
-      "version": "4.0.0",
+      "version": "4.0.0-mpt-beta",
       "license": "ISC",
       "dependencies": {
         "@scure/bip32": "^1.3.1",
@@ -14258,7 +14258,7 @@
         "bignumber.js": "^9.0.0",
         "eventemitter3": "^5.0.1",
         "ripple-address-codec": "^5.0.0",
-        "ripple-binary-codec": "^2.1.0",
+        "ripple-binary-codec": "^4.0.0-mpt-beta",
         "ripple-keypairs": "^2.0.0"
       },
       "devDependencies": {
diff --git a/packages/ripple-binary-codec/package.json b/packages/ripple-binary-codec/package.json
index 41aca52356..98e5f5413f 100644
--- a/packages/ripple-binary-codec/package.json
+++ b/packages/ripple-binary-codec/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ripple-binary-codec",
-  "version": "2.1.0",
+  "version": "4.0.0-mpt-beta",
   "description": "XRP Ledger binary codec",
   "files": [
     "dist/*",
diff --git a/packages/xrpl/HISTORY.md b/packages/xrpl/HISTORY.md
index 3f4e60a9c5..1f043a9b6a 100644
--- a/packages/xrpl/HISTORY.md
+++ b/packages/xrpl/HISTORY.md
@@ -7,6 +7,11 @@ Subscribe to [the **xrpl-announce** mailing list](https://groups.google.com/g/xr
 ### Added
 * parseTransactionFlags as a utility function in the xrpl package to streamline transactions flags-to-map conversion
 
+## 4.0.0-mpt-beta (2024-09-04)
+
+### Added
+* Updated `definitions.json`
+
 ## 4.0.0 (2024-07-15)
 
 ### BREAKING CHANGES
diff --git a/packages/xrpl/package.json b/packages/xrpl/package.json
index 86644b0e1f..79be73fb33 100644
--- a/packages/xrpl/package.json
+++ b/packages/xrpl/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xrpl",
-  "version": "4.0.0",
+  "version": "4.0.0-mpt-beta",
   "license": "ISC",
   "description": "A TypeScript/JavaScript API for interacting with the XRP Ledger in Node.js and the browser",
   "files": [
@@ -29,7 +29,7 @@
     "bignumber.js": "^9.0.0",
     "eventemitter3": "^5.0.1",
     "ripple-address-codec": "^5.0.0",
-    "ripple-binary-codec": "^2.1.0",
+    "ripple-binary-codec": "^4.0.0-mpt-beta",
     "ripple-keypairs": "^2.0.0"
   },
   "devDependencies": {