diff --git a/README.md b/README.md
index 8f720a2..3661d4f 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ An MCP (Model Context Protocol) server that provides local access to Aztec docum
 
 ## Features
 
-- **Version Support**: Clone specific Aztec release tags (e.g., `v4.2.0`)
+- **Version Support**: Clone specific Aztec release tags (e.g., `v4.3.0`)
 - **Local Repository Cloning**: Automatically clones Aztec repositories with sparse checkout for efficiency
 - **Fast Code Search**: Search Noir contracts and TypeScript files using ripgrep (with fallback)
 - **Documentation Search**: Search Aztec documentation locally; with an API key, semantic vector search across the full corpora (framework docs, examples, Noir stdlib, TypeScript SDK, protocol circuits)
@@ -73,7 +73,7 @@ Add to your `.mcp.json`. The minimal config is just the command; add `env.API_KE
 | `API_KEY`             | unset                                | Personal API key from `/mcp-key` in the Noir Discord (<https://discord.gg/xMud5StFyA>). Unset → local-only mode. |
 | `API_URL`             | `https://aztec.adjacentpossible.dev` | DocsGPT backend the semantic search hits. Override to point at a self-hosted instance.                              |
 | `REQUEST_TIMEOUT`     | `60000`                              | Semantic-search request timeout (ms).                                                                               |
-| `AZTEC_DEFAULT_VERSION` | `v4.2.0-aztecnr-rc.2`              | Default version tag for `aztec_sync_repos`.                                                                         |
+| `AZTEC_DEFAULT_VERSION` | `v4.3.0`                             | Default version tag for `aztec_sync_repos`.                                                                         |
 | `AZTEC_MCP_REPOS_DIR` | `~/.aztec-mcp/repos/`                | Where local clones live.                                                                                            |
 
 ## Available Tools
@@ -91,14 +91,14 @@ Clones:
 
 **Parameters:**
 
-- `version` (string): Aztec version tag to clone (e.g., `v4.2.0`). Defaults to latest supported version.
+- `version` (string): Aztec version tag to clone (e.g., `v4.3.0`). Defaults to latest supported version.
 - `force` (boolean): Force re-clone even if repos exist
 - `repos` (string[]): Specific repos to sync
 
 **Example - Clone specific version:**
 
 ```
-aztec_sync_repos({ version: "v4.2.0" })
+aztec_sync_repos({ version: "v4.3.0" })
 ```
 
 ### `aztec_status`
diff --git a/src/index.ts b/src/index.ts
index 7489e55..6fbb473 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -225,7 +225,7 @@ server.setRequestHandler(ListToolsRequestSchema, async () => {
           version: {
             type: "string",
             description:
-              "Aztec version tag to clone (e.g., 'v4.2.0'). Defaults to latest supported version.",
+              "Aztec version tag to clone (e.g., 'v4.3.0'). Defaults to latest supported version.",
           },
           force: {
             type: "boolean",
diff --git a/src/repos/config.ts b/src/repos/config.ts
index ea300ad..37cabaf 100644
--- a/src/repos/config.ts
+++ b/src/repos/config.ts
@@ -31,7 +31,7 @@ export interface RepoConfig {
 }
 
 /** Default Aztec version (tag) to use - can be overridden via AZTEC_DEFAULT_VERSION env var */
-export const DEFAULT_AZTEC_VERSION = process.env.AZTEC_DEFAULT_VERSION || "v4.2.0";
+export const DEFAULT_AZTEC_VERSION = process.env.AZTEC_DEFAULT_VERSION || "v4.3.0";
 
 /**
  * Base Aztec repository configurations (without version)
@@ -134,7 +134,7 @@ const BASE_REPOS: Omit<RepoConfig, "tag">[] = [
 
 /**
  * Get Aztec repositories configured for a specific version
- * @param version - The Aztec version tag (e.g., "v4.2.0")
+ * @param version - The Aztec version tag (e.g., "v4.3.0")
  */
 export function getAztecRepos(version?: string): RepoConfig[] {
   const tag = version || DEFAULT_AZTEC_VERSION;
diff --git a/test.mjs b/test.mjs
index 92595c0..940f456 100644
--- a/test.mjs
+++ b/test.mjs
@@ -23,7 +23,7 @@ async function test() {
   // Test 2: Sync repos (this will take a while)
   console.log("2. Syncing repositories (this may take a few minutes)...");
   const syncResult = await syncRepos({
-    version: "v4.2.0",
+    version: "v4.3.0",
     force: true  // Force re-clone to get all repos at the tag
   });
   console.log(`   Success: ${syncResult.success}`);