diff --git a/test/nuts/agent.generate.template.nut.ts b/test/nuts/agent.generate.template.nut.ts
index c4931835..3ca561f9 100644
--- a/test/nuts/agent.generate.template.nut.ts
+++ b/test/nuts/agent.generate.template.nut.ts
@@ -92,7 +92,7 @@ describe('agent generate template NUTs', function () {
 
     execCmd<AgentGenerateTemplateResult>(
       `agent generate template --agent-file ${invalidAgentFile} --agent-version ${agentVersion} --output-dir ${outputDir} --json`,
-      { ensureExitCode: 1 }
+      { ensureExitCode: 'nonZero' }
     );
   });
 
diff --git a/test/nuts/agent.generate.test-spec.nut.ts b/test/nuts/agent.generate.test-spec.nut.ts
index e0ae08b3..524bc3c8 100644
--- a/test/nuts/agent.generate.test-spec.nut.ts
+++ b/test/nuts/agent.generate.test-spec.nut.ts
@@ -58,7 +58,7 @@ describe('agent generate test-spec NUTs', function () {
     const outputFile = join(session.project.dir, 'specs', genUniqueString('testSpec_%s.yaml'));
 
     execCmd(`agent generate test-spec --from-definition ${invalidFile} --output-file ${outputFile} --force-overwrite`, {
-      ensureExitCode: 1,
+      ensureExitCode: 'nonZero',
     });
   });
 
@@ -75,7 +75,7 @@ describe('agent generate test-spec NUTs', function () {
     const outputFile = join(session.project.dir, 'specs', genUniqueString('testSpec_%s.yaml'));
 
     execCmd(`agent generate test-spec --from-definition ${invalidFile} --output-file ${outputFile} --force-overwrite`, {
-      ensureExitCode: 1,
+      ensureExitCode: 'nonZero',
     });
   });
 });
diff --git a/test/nuts/agent.test.create.nut.ts b/test/nuts/agent.test.create.nut.ts
index ab5c05e5..13adf4d4 100644
--- a/test/nuts/agent.test.create.nut.ts
+++ b/test/nuts/agent.test.create.nut.ts
@@ -58,14 +58,14 @@ describe('agent test create', function () {
     const normalizedInvalidSpecPath = normalize(invalidSpecPath).replace(/\\/g, '/');
     execCmd<AgentTestCreateResult>(
       `agent test create --api-name "${testApiName}" --spec "${normalizedInvalidSpecPath}" --target-org ${getUsername()} --preview --json`,
-      { ensureExitCode: 1 }
+      { ensureExitCode: 'nonZero' }
     );
   });
 
   it('should fail when required flags are missing in JSON mode', async () => {
     // Missing --api-name
     execCmd<AgentTestCreateResult>(`agent test create --target-org ${getUsername()} --json`, {
-      ensureExitCode: 1,
+      ensureExitCode: 'nonZero',
     });
 
     // Missing --spec
@@ -73,7 +73,7 @@ describe('agent test create', function () {
     execCmd<AgentTestCreateResult>(
       `agent test create --api-name "${testApiName}" --target-org ${getUsername()} --json`,
       {
-        ensureExitCode: 1,
+        ensureExitCode: 'nonZero',
       }
     );
   });