diff --git a/src/node/heart.ts b/src/node/heart.ts
index eed070e4..1eada79b 100644
--- a/src/node/heart.ts
+++ b/src/node/heart.ts
@@ -45,4 +45,13 @@ export class Heart {
         })
     }, this.heartbeatInterval)
   }
+
+  /**
+   * Call to clear any heartbeatTimer for shutdown.
+   */
+  public dispose(): void {
+    if (typeof this.heartbeatTimer !== "undefined") {
+      clearTimeout(this.heartbeatTimer)
+    }
+  }
 }
diff --git a/src/node/routes/index.ts b/src/node/routes/index.ts
index 4688d6a2..00654367 100644
--- a/src/node/routes/index.ts
+++ b/src/node/routes/index.ts
@@ -55,6 +55,9 @@ export const register = async (
       })
     })
   })
+  server.on("close", () => {
+    heart.dispose()
+  })
 
   app.disable("x-powered-by")
   wsApp.disable("x-powered-by")
diff --git a/test/integration.ts b/test/integration.ts
index 6a321cae..f829fe5d 100644
--- a/test/integration.ts
+++ b/test/integration.ts
@@ -8,6 +8,8 @@ export async function setup(
   argv: string[],
   configFile?: string,
 ): Promise<[express.Application, express.Application, httpserver.HttpServer, DefaultedArgs]> {
+  argv = ["--bind-addr=localhost:0", ...argv]
+
   const cliArgs = parse(argv)
   const configArgs = parseConfigFile(configFile || "", "test/integration.ts")
   const args = await setDefaults(cliArgs, configArgs)