diff --git a/schema/cryptography-defs.json b/schema/cryptography-defs.json
index 761c6672..fb1fcdc5 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}][-{dkLen}]",
+          "primitive": "kdf"
+        }
+      ]
+    },
     {
       "family": "PBKDF1",
       "standard": [
diff --git a/schema/cryptography-defs.schema.json b/schema/cryptography-defs.schema.json
index 1f06fdff..818c1942 100644
--- a/schema/cryptography-defs.schema.json
+++ b/schema/cryptography-defs.schema.json
@@ -248,6 +248,7 @@
         "A5/2",
         "AES",
         "ARIA",
+        "Argon2",
         "Ascon",
         "BLAKE2",
         "BLAKE3",