diff --git a/jest.config.cjs b/jest.config.cjs
index 374a9f0..72d685e 100644
--- a/jest.config.cjs
+++ b/jest.config.cjs
@@ -46,6 +46,7 @@ module.exports = {
       }
     ]
   },
+  transformIgnorePatterns: ['/node_modules/(?!(?:@octokit|universal-user-agent)/)'],
   moduleNameMapper: {
     '^(\\.{1,2}/.*)\\.js$': '$1'
   },
diff --git a/jest.config.itg.cjs b/jest.config.itg.cjs
index 8754752..3f679d0 100644
--- a/jest.config.itg.cjs
+++ b/jest.config.itg.cjs
@@ -29,6 +29,7 @@ module.exports = {
       }
     ]
   },
+  transformIgnorePatterns: ['/node_modules/(?!(?:@octokit|universal-user-agent)/)'],
   moduleNameMapper: {
     '^(\\.{1,2}/.*)\\.js$': '$1'
   },