diff --git a/crates/matrix-sdk-crypto/src/identities/user.rs b/crates/matrix-sdk-crypto/src/identities/user.rs
index 6a2e0b06f..44d68c3fb 100644
--- a/crates/matrix-sdk-crypto/src/identities/user.rs
+++ b/crates/matrix-sdk-crypto/src/identities/user.rs
@@ -14,7 +14,7 @@
 
 use std::{
     collections::HashMap,
-    ops::Deref,
+    ops::{Deref, DerefMut},
     sync::{
         atomic::{AtomicBool, Ordering},
         Arc, RwLock,
@@ -169,6 +169,12 @@ impl Deref for OwnUserIdentity {
     }
 }
 
+impl DerefMut for OwnUserIdentity {
+    fn deref_mut(&mut self) -> &mut <Self as Deref>::Target {
+        &mut self.inner
+    }
+}
+
 impl OwnUserIdentity {
     /// Mark our user identity as verified.
     ///
@@ -282,6 +288,12 @@ impl Deref for OtherUserIdentity {
     }
 }
 
+impl DerefMut for OtherUserIdentity {
+    fn deref_mut(&mut self) -> &mut <Self as Deref>::Target {
+        &mut self.inner
+    }
+}
+
 impl OtherUserIdentity {
     /// Is this user identity verified.
     pub fn is_verified(&self) -> bool {