diff --git a/packages/google-cloud-oslogin/synth.metadata b/packages/google-cloud-oslogin/synth.metadata
index a0e09c9d694a..0a49541b3bab 100644
--- a/packages/google-cloud-oslogin/synth.metadata
+++ b/packages/google-cloud-oslogin/synth.metadata
@@ -3,23 +3,15 @@
     {
       "git": {
         "name": ".",
-        "remote": "https://github.com/googleapis/nodejs-os-login.git",
-        "sha": "7f6a0a74e526e7cc8f2283874915e231546c4ad2"
-      }
-    },
-    {
-      "git": {
-        "name": "googleapis",
-        "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "42ee97c1b93a0e3759bbba3013da309f670a90ab",
-        "internalRef": "307114445"
+        "remote": "git@github.com:googleapis/nodejs-os-login.git",
+        "sha": "59a874f2ad586f54b994e0ee8ed3c7920eb15126"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "19465d3ec5e5acdb01521d8f3bddd311bcbee28d"
+        "sha": "ab883569eb0257bbf16a6d825fd018b3adde3912"
       }
     }
   ],
diff --git a/packages/google-cloud-oslogin/test/gapic_os_login_service_v1.ts b/packages/google-cloud-oslogin/test/gapic_os_login_service_v1.ts
index e6844dbe64d6..44b07553ad73 100644
--- a/packages/google-cloud-oslogin/test/gapic_os_login_service_v1.ts
+++ b/packages/google-cloud-oslogin/test/gapic_os_login_service_v1.ts
@@ -238,9 +238,7 @@ describe('v1.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.deletePosixAccount(request);
-      }, expectedError);
+      await assert.rejects(client.deletePosixAccount(request), expectedError);
       assert(
         (client.innerApiCalls.deletePosixAccount as SinonStub)
           .getCall(0)
@@ -354,9 +352,7 @@ describe('v1.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.deleteSshPublicKey(request);
-      }, expectedError);
+      await assert.rejects(client.deleteSshPublicKey(request), expectedError);
       assert(
         (client.innerApiCalls.deleteSshPublicKey as SinonStub)
           .getCall(0)
@@ -468,9 +464,7 @@ describe('v1.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.getLoginProfile(request);
-      }, expectedError);
+      await assert.rejects(client.getLoginProfile(request), expectedError);
       assert(
         (client.innerApiCalls.getLoginProfile as SinonStub)
           .getCall(0)
@@ -582,9 +576,7 @@ describe('v1.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.getSshPublicKey(request);
-      }, expectedError);
+      await assert.rejects(client.getSshPublicKey(request), expectedError);
       assert(
         (client.innerApiCalls.getSshPublicKey as SinonStub)
           .getCall(0)
@@ -698,9 +690,7 @@ describe('v1.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.importSshPublicKey(request);
-      }, expectedError);
+      await assert.rejects(client.importSshPublicKey(request), expectedError);
       assert(
         (client.innerApiCalls.importSshPublicKey as SinonStub)
           .getCall(0)
@@ -814,9 +804,7 @@ describe('v1.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.updateSshPublicKey(request);
-      }, expectedError);
+      await assert.rejects(client.updateSshPublicKey(request), expectedError);
       assert(
         (client.innerApiCalls.updateSshPublicKey as SinonStub)
           .getCall(0)
diff --git a/packages/google-cloud-oslogin/test/gapic_os_login_service_v1beta.ts b/packages/google-cloud-oslogin/test/gapic_os_login_service_v1beta.ts
index 53e0454bdfb6..a7f31f0e2b42 100644
--- a/packages/google-cloud-oslogin/test/gapic_os_login_service_v1beta.ts
+++ b/packages/google-cloud-oslogin/test/gapic_os_login_service_v1beta.ts
@@ -238,9 +238,7 @@ describe('v1beta.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.deletePosixAccount(request);
-      }, expectedError);
+      await assert.rejects(client.deletePosixAccount(request), expectedError);
       assert(
         (client.innerApiCalls.deletePosixAccount as SinonStub)
           .getCall(0)
@@ -354,9 +352,7 @@ describe('v1beta.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.deleteSshPublicKey(request);
-      }, expectedError);
+      await assert.rejects(client.deleteSshPublicKey(request), expectedError);
       assert(
         (client.innerApiCalls.deleteSshPublicKey as SinonStub)
           .getCall(0)
@@ -468,9 +464,7 @@ describe('v1beta.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.getLoginProfile(request);
-      }, expectedError);
+      await assert.rejects(client.getLoginProfile(request), expectedError);
       assert(
         (client.innerApiCalls.getLoginProfile as SinonStub)
           .getCall(0)
@@ -582,9 +576,7 @@ describe('v1beta.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.getSshPublicKey(request);
-      }, expectedError);
+      await assert.rejects(client.getSshPublicKey(request), expectedError);
       assert(
         (client.innerApiCalls.getSshPublicKey as SinonStub)
           .getCall(0)
@@ -698,9 +690,7 @@ describe('v1beta.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.importSshPublicKey(request);
-      }, expectedError);
+      await assert.rejects(client.importSshPublicKey(request), expectedError);
       assert(
         (client.innerApiCalls.importSshPublicKey as SinonStub)
           .getCall(0)
@@ -814,9 +804,7 @@ describe('v1beta.OsLoginServiceClient', () => {
         undefined,
         expectedError
       );
-      await assert.rejects(async () => {
-        await client.updateSshPublicKey(request);
-      }, expectedError);
+      await assert.rejects(client.updateSshPublicKey(request), expectedError);
       assert(
         (client.innerApiCalls.updateSshPublicKey as SinonStub)
           .getCall(0)