diff --git a/packages/external-match/CHANGELOG.md b/packages/external-match/CHANGELOG.md
index e8b1979f..3613a5bb 100644
--- a/packages/external-match/CHANGELOG.md
+++ b/packages/external-match/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @renegade-fi/renegade-sdk
 
+## 0.1.18
+
+### Patch Changes
+
+- external-match: client: fix typo in accept header
+
 ## 0.1.17
 
 ### Patch Changes
diff --git a/packages/external-match/package.json b/packages/external-match/package.json
index 6082ff80..8ab77fa5 100644
--- a/packages/external-match/package.json
+++ b/packages/external-match/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@renegade-fi/renegade-sdk",
-    "version": "0.1.17",
+    "version": "0.1.18",
     "description": "A TypeScript client for interacting with the Renegade Darkpool API",
     "repository": {
         "type": "git",
diff --git a/packages/external-match/src/http.ts b/packages/external-match/src/http.ts
index 68e05646..c144930a 100644
--- a/packages/external-match/src/http.ts
+++ b/packages/external-match/src/http.ts
@@ -58,7 +58,7 @@ export class RelayerHttpClient {
         this.defaultHeaders = {
             "Content-Type": "application/json",
             // Ask the server to encode all numeric values as strings.
-            Accept: "application/json; numbers=string",
+            Accept: "application/json; number=string",
         };
     }