diff --git a/circuits/cpp/barretenberg/.gitrepo b/circuits/cpp/barretenberg/.gitrepo
index 68743a51e79..1f2aee5efc4 100644
--- a/circuits/cpp/barretenberg/.gitrepo
+++ b/circuits/cpp/barretenberg/.gitrepo
@@ -6,7 +6,7 @@
 [subrepo]
 	remote = https://github.com/AztecProtocol/barretenberg
 	branch = master
-	commit = 3bcf12b1a302280d5112475c5993b125e130209e
-	parent = 0a7058cbda228c9baf378d69c906596e204d804f
+	commit = 051449fe181bf53e2cfebc15c6b9bd01cc44fc50
+	parent = 6343e3654ad9eebdbbc12a71cd6a8d9400a5fdd1
 	method = merge
 	cmdver = 0.4.6
diff --git a/circuits/cpp/barretenberg/.release-please-manifest.json b/circuits/cpp/barretenberg/.release-please-manifest.json
index 1a04f6e623a..0adc66ce620 100644
--- a/circuits/cpp/barretenberg/.release-please-manifest.json
+++ b/circuits/cpp/barretenberg/.release-please-manifest.json
@@ -1 +1 @@
-{".":"0.4.5","ts":"0.4.5"}
\ No newline at end of file
+{".":"0.4.6","ts":"0.4.6"}
\ No newline at end of file
diff --git a/circuits/cpp/barretenberg/CHANGELOG.md b/circuits/cpp/barretenberg/CHANGELOG.md
index a52253bffa2..79339a20a83 100644
--- a/circuits/cpp/barretenberg/CHANGELOG.md
+++ b/circuits/cpp/barretenberg/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.4.6](https://github.com/AztecProtocol/barretenberg/compare/barretenberg-v0.4.5...barretenberg-v0.4.6) (2023-08-29)
+
+
+### Bug Fixes
+
+* Truncate SRS size to the amount of points that we have downloaded ([#1862](https://github.com/AztecProtocol/barretenberg/issues/1862)) ([3bcf12b](https://github.com/AztecProtocol/barretenberg/commit/3bcf12b1a302280d5112475c5993b125e130209e))
+
 ## [0.4.5](https://github.com/AztecProtocol/barretenberg/compare/barretenberg-v0.4.4...barretenberg-v0.4.5) (2023-08-28)
 
 
diff --git a/circuits/cpp/barretenberg/VERSION b/circuits/cpp/barretenberg/VERSION
index e1d18c281d4..17fe4efbb73 100644
--- a/circuits/cpp/barretenberg/VERSION
+++ b/circuits/cpp/barretenberg/VERSION
@@ -1 +1 @@
-v0.4.5 x-release-please-version
+v0.4.6 x-release-please-version
diff --git a/circuits/cpp/barretenberg/barretenberg-wasm.nix b/circuits/cpp/barretenberg/barretenberg-wasm.nix
index a44aae05d98..e5efdc0568a 100644
--- a/circuits/cpp/barretenberg/barretenberg-wasm.nix
+++ b/circuits/cpp/barretenberg/barretenberg-wasm.nix
@@ -6,7 +6,7 @@ in
 stdenv.mkDerivation
 {
   pname = "barretenberg.wasm";
-  version = "0.4.5"; # x-release-please-version
+  version = "0.4.6"; # x-release-please-version
 
   src = ./cpp;
 
diff --git a/circuits/cpp/barretenberg/barretenberg.nix b/circuits/cpp/barretenberg/barretenberg.nix
index d8f50042333..0007c5d2092 100644
--- a/circuits/cpp/barretenberg/barretenberg.nix
+++ b/circuits/cpp/barretenberg/barretenberg.nix
@@ -14,7 +14,7 @@ in
 buildEnv.mkDerivation
 {
   pname = "libbarretenberg";
-  version = "0.4.5"; # x-release-please-version
+  version = "0.4.6"; # x-release-please-version
 
   src = ./cpp;
 
diff --git a/circuits/cpp/barretenberg/cpp/CMakeLists.txt b/circuits/cpp/barretenberg/cpp/CMakeLists.txt
index e797948bba0..6eecea9a54c 100644
--- a/circuits/cpp/barretenberg/cpp/CMakeLists.txt
+++ b/circuits/cpp/barretenberg/cpp/CMakeLists.txt
@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 3.24)
 project(
     Barretenberg
     DESCRIPTION "BN254 elliptic curve library, and PLONK SNARK prover"
-    VERSION 0.4.5 # x-release-please-version
+    VERSION 0.4.6 # x-release-please-version
     LANGUAGES CXX C
 )
 
diff --git a/circuits/cpp/barretenberg/ts/CHANGELOG.md b/circuits/cpp/barretenberg/ts/CHANGELOG.md
index 36bc720de74..7d7dea917a8 100644
--- a/circuits/cpp/barretenberg/ts/CHANGELOG.md
+++ b/circuits/cpp/barretenberg/ts/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.4.6](https://github.com/AztecProtocol/barretenberg/compare/barretenberg.js-v0.4.5...barretenberg.js-v0.4.6) (2023-08-29)
+
+
+### Miscellaneous Chores
+
+* **barretenberg.js:** Synchronize barretenberg versions
+
 ## [0.4.5](https://github.com/AztecProtocol/barretenberg/compare/barretenberg.js-v0.4.4...barretenberg.js-v0.4.5) (2023-08-28)
 
 
diff --git a/circuits/cpp/barretenberg/ts/package.json b/circuits/cpp/barretenberg/ts/package.json
index 22c38e55e40..5d0fda1ce71 100644
--- a/circuits/cpp/barretenberg/ts/package.json
+++ b/circuits/cpp/barretenberg/ts/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aztec/bb.js",
-  "version": "0.4.5",
+  "version": "0.4.6",
   "homepage": "https://github.com/AztecProtocol/aztec-packages/tree/master/circuits/cpp/barretenberg/ts",
   "license": "MIT",
   "type": "module",