diff --git a/schema/cryptography-defs.json b/schema/cryptography-defs.json
index 761c6672..3e9539b0 100644
--- a/schema/cryptography-defs.json
+++ b/schema/cryptography-defs.json
@@ -1357,6 +1357,21 @@
         }
       ]
     },
+    {
+      "family": "Argon2",
+      "standard": [
+        {
+          "name": "RFC9106",
+          "url": "https://doi.org/10.17487/RFC9106"
+        }
+      ],
+      "variant": [
+        {
+          "pattern": "Argon2(id|i|d)[-{memoryKiB}][-{passes}][-{parallelism}]",
+          "primitive": "hash"
+        }
+      ]
+    },
     {
       "family": "PBKDF1",
       "standard": [