diff --git a/docs/bug-reproduce-openssl.mjs b/docs/bug-reproduce-openssl.mjs
index e84ba7a..cd59c60 100644
--- a/docs/bug-reproduce-openssl.mjs
+++ b/docs/bug-reproduce-openssl.mjs
@@ -9,6 +9,7 @@
 
 import { execSync } from 'node:child_process';
 import { mkdtempSync, readFileSync, rmSync } from 'node:fs';
+import { randomBytes } from 'node:crypto';
 import { tmpdir } from 'node:os';
 import { join } from 'node:path';
 import { DefaultAzureCredential } from '@azure/identity';
@@ -21,7 +22,7 @@ if (!vaultName) {
 }
 const vaultUrl = `https://${vaultName}.vault.azure.net`;
 
-const CERT_NAME = 'bug-reproduce-test';
+const CERT_NAME = `bug-reproduce-${randomBytes(4).toString('hex')}`;
 const PFX_PASSWORD = 'test-password-123';
 
 const tmp = mkdtempSync(join(tmpdir(), 'kv-bug-'));
diff --git a/docs/bug-workaround-openssl.mjs b/docs/bug-workaround-openssl.mjs
index ad6af08..b59dc15 100644
--- a/docs/bug-workaround-openssl.mjs
+++ b/docs/bug-workaround-openssl.mjs
@@ -8,6 +8,7 @@
 
 import { execSync } from 'node:child_process';
 import { mkdtempSync, readFileSync, rmSync } from 'node:fs';
+import { randomBytes } from 'node:crypto';
 import { tmpdir } from 'node:os';
 import { join } from 'node:path';
 import { DefaultAzureCredential } from '@azure/identity';
@@ -20,7 +21,7 @@ if (!vaultName) {
 }
 const vaultUrl = `https://${vaultName}.vault.azure.net`;
 
-const CERT_NAME = 'bug-workaround-test';
+const CERT_NAME = `bug-workaround-${randomBytes(4).toString('hex')}`;
 const PFX_PASSWORD = 'test-password-123';
 
 const tmp = mkdtempSync(join(tmpdir(), 'kv-workaround-'));