diff --git a/src/ffi/index.ts b/src/ffi/index.ts
index ac217c2f..08ec61bd 100644
--- a/src/ffi/index.ts
+++ b/src/ffi/index.ts
@@ -4,7 +4,7 @@ import logger, { DEFAULT_LOG_LEVEL } from '../logger';
 import { LogLevel } from '../logger/types';
 import { Ffi } from './types';
 
-export const PACT_FFI_VERSION = '0.4.21';
+export const PACT_FFI_VERSION = '0.4.22';
 
 // supported prebuilds
 // darwin-arm64
diff --git a/test/matt.consumer.integration.spec.ts b/test/matt.consumer.integration.spec.ts
index fa439829..0766d7fa 100644
--- a/test/matt.consumer.integration.spec.ts
+++ b/test/matt.consumer.integration.spec.ts
@@ -38,6 +38,7 @@ const sendMattMessageTCP = (
   return new Promise((resolve) => {
     socket.on('data', (data) => {
       resolve(parseMattMessage(data.toString()));
+      socket.destroy();
     });
   });
 };
diff --git a/test/matt.provider.integration.spec.ts b/test/matt.provider.integration.spec.ts
index ad0097ed..5cb7969d 100644
--- a/test/matt.provider.integration.spec.ts
+++ b/test/matt.provider.integration.spec.ts
@@ -40,6 +40,7 @@ const startTCPServer = (host: string, port: number) => {
         sock.write(generateMattMessage('message not understood'));
       }
       sock.write('\n');
+      sock.destroy();
     });
   });