diff --git a/src/aidbox_sdk/schema/verify.clj b/src/aidbox_sdk/schema/verify.clj
index 11454b3..f84ddbc 100644
--- a/src/aidbox_sdk/schema/verify.clj
+++ b/src/aidbox_sdk/schema/verify.clj
@@ -32,7 +32,10 @@
   "Finds core package in the list of packages.
    Throws an exception if there are more then one core package."
   [packages]
-  (let [cores (filter #(= "fhir.core" (:type %)) packages)
+  (let [cores (filter #(or
+                        (= "Core" (:type %))
+                        (= "fhir.core" (:type %)))
+                      packages)
         core  (first cores)]
     (cond
       (= (count cores) 0)