diff --git a/compile.py b/compile.py
index 7f6a7b1..bb63ca7 100755
--- a/compile.py
+++ b/compile.py
@@ -18,7 +18,7 @@
 import os.path
 import sys
 import json
-import validictory
+import jsonschema
 import audit
 
 if sys.version_info < (3,):
@@ -76,8 +76,8 @@ def validate(stream):
 
     def valid_schema(obj):
         try:
-            validictory.validate(obj, schema)
-        except validictory.validator.RequiredFieldValidationError:
+            jsonschema.validate(obj, schema)
+        except jsonschema.exceptions.ValidationError:
             print("Failure to validate {id}".format(**obj))
             raise
 
diff --git a/requirements.txt b/requirements.txt
index 4261601..03cd456 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-validictory
+jsonschema
 boto
diff --git a/schema/license.json b/schema/license.json
index f9b71fc..bbb1eee 100644
--- a/schema/license.json
+++ b/schema/license.json
@@ -14,7 +14,6 @@
                     }
                 }
             },
-            "required": true,
             "type": "array"
         },
         "keywords": {
@@ -37,7 +36,6 @@
                 },
                 "type": "object"
             },
-            "required": true,
             "type": "array"
         },
         "name": {
@@ -58,11 +56,9 @@
                 },
                 "type": "object"
             },
-            "required": true,
             "type": "array"
         },
         "superseded_by": {
-            "required": false,
             "type": [
                 "null",
                 "string"
@@ -86,5 +82,10 @@
             "type": "array"
         }
     },
+    "required": [
+        "identifiers",
+        "links",
+        "other_names"
+    ],
     "type": "object"
 }