diff --git a/bin/lib/getEnv.js b/bin/lib/getEnv.js
index 997d1951a..3c1fa9a00 100644
--- a/bin/lib/getEnv.js
+++ b/bin/lib/getEnv.js
@@ -25,17 +25,17 @@ const CHROMATIC_PROJECT_TOKEN =
   process.env.CHROMA_APP_CODE; // backwards compatibility
 
 export default () => ({
-  CHROMATIC_SERVER_PORT,
+  CHROMATIC_SERVER_PORT: parseInt(CHROMATIC_SERVER_PORT, 10),
   CHROMATIC_INDEX_URL,
   CHROMATIC_TUNNEL_URL,
   CHROMATIC_CREATE_TUNNEL,
   CHROMATIC_PROJECT_TOKEN,
-  CHROMATIC_RETRIES,
-  CHROMATIC_POLL_INTERVAL,
-  CHROMATIC_TIMEOUT,
+  CHROMATIC_RETRIES: parseInt(CHROMATIC_RETRIES, 10),
+  CHROMATIC_POLL_INTERVAL: parseInt(CHROMATIC_POLL_INTERVAL, 10),
+  CHROMATIC_TIMEOUT: parseInt(CHROMATIC_TIMEOUT, 10),
   CHROMATIC_STORYBOOK_VERSION,
   ENVIRONMENT_WHITELIST,
   LOGGLY_CUSTOMER_TOKEN,
-  STORYBOOK_BUILD_TIMEOUT,
+  STORYBOOK_BUILD_TIMEOUT: parseInt(STORYBOOK_BUILD_TIMEOUT, 10),
   STORYBOOK_CLI_FLAGS_BY_VERSION,
 });