diff --git a/ckrack/optimus-bundle/0.1.0/manifest.json b/ckrack/optimus-bundle/0.1.0/manifest.json
index 6eb85c61..54d50acc 100644
--- a/ckrack/optimus-bundle/0.1.0/manifest.json
+++ b/ckrack/optimus-bundle/0.1.0/manifest.json
@@ -7,8 +7,8 @@
     },
     "env": {
         "#1": "Replace these env vars with the output of `php vendor/bin/optimus spark -f env`",
-        "OPTIMUS_PRIME": 3,
-        "OPTIMUS_INVERSE": 715827883,
-        "OPTIMUS_RANDOM": 1592469642
+        "OPTIMUS_PRIME": "3",
+        "OPTIMUS_INVERSE": "715827883",
+        "OPTIMUS_RANDOM": "1592469642"
     }
 }