diff --git a/schema/cryptography-defs.json b/schema/cryptography-defs.json
index e3e1728e..4c4198df 100644
--- a/schema/cryptography-defs.json
+++ b/schema/cryptography-defs.json
@@ -123,6 +123,21 @@
         }
       ]
     },
+    {
+      "family": "HPKE",
+      "standard": [
+        {
+          "name": "RFC9180",
+          "url": "https://doi.org/10.17487/RFC9180"
+        }
+      ],
+      "variant": [
+        {
+          "pattern": "HPKE[-(mode_base|mode_psk|mode_auth|mode_auth_psk)]-{kem}-{kdf}-{aead}",
+          "primitive": "pke"
+        }
+      ]
+    },
     {
       "family": "MQV",
       "standard": [