diff --git a/crates/ruma-common/src/events/key/verification/accept.rs b/crates/ruma-common/src/events/key/verification/accept.rs
index 0cacc78f..65895ffc 100644
--- a/crates/ruma-common/src/events/key/verification/accept.rs
+++ b/crates/ruma-common/src/events/key/verification/accept.rs
@@ -287,7 +287,7 @@ mod tests {
                 "method": "m.sas.v1",
                 "key_agreement_protocol": "curve25519",
                 "hash": "sha256",
-                "message_authentication_code": "hkdf-hmac-sha256",
+                "message_authentication_code": "hkdf-hmac-sha256.v2",
                 "short_authentication_string": ["decimal"]
             },
             "type": "m.key.verification.accept",
diff --git a/crates/ruma-common/src/events/key/verification/start.rs b/crates/ruma-common/src/events/key/verification/start.rs
index be7eba9d..374063d6 100644
--- a/crates/ruma-common/src/events/key/verification/start.rs
+++ b/crates/ruma-common/src/events/key/verification/start.rs
@@ -152,8 +152,8 @@ pub struct SasV1Content {
     /// The message authentication codes that the sending device understands.
     ///
     /// Must include at least `hkdf-hmac-sha256.v2`. Should also include `hkdf-hmac-sha256` for
-    /// compatibility with older clients, though this identifier is deprecated and will be
-    /// removed in a future version of the spec.
+    /// compatibility with older clients, though this MAC is deprecated and will be removed in a
+    /// future version of the spec.
     pub message_authentication_codes: Vec<MessageAuthenticationCode>,
 
     /// The SAS methods the sending device (and the sending device's user) understands.
@@ -355,7 +355,7 @@ mod tests {
             "method": "m.sas.v1",
             "hashes": ["sha256"],
             "key_agreement_protocols": ["curve25519"],
-            "message_authentication_codes": ["hkdf-hmac-sha256"],
+            "message_authentication_codes": ["hkdf-hmac-sha256.v2"],
             "short_authentication_string": ["decimal"]
         });