diff --git a/crates/matrix-sdk-crypto/src/olm/account.rs b/crates/matrix-sdk-crypto/src/olm/account.rs
index 67af1d7f4..4372e74fb 100644
--- a/crates/matrix-sdk-crypto/src/olm/account.rs
+++ b/crates/matrix-sdk-crypto/src/olm/account.rs
@@ -866,7 +866,7 @@ impl ReadOnlyAccount {
         let one_time_keys = self.one_time_keys().await;
         let mut one_time_key_map = BTreeMap::new();
 
-        for (key_id, key) in one_time_keys.curve25519().iter() {
+        for (key_id, key) in one_time_keys.curve25519() {
             let key_json = json!({
                 "key": key,
             });
diff --git a/crates/matrix-sdk-crypto/src/store/sled.rs b/crates/matrix-sdk-crypto/src/store/sled.rs
index 8b1ba4e12..5c87d723b 100644
--- a/crates/matrix-sdk-crypto/src/store/sled.rs
+++ b/crates/matrix-sdk-crypto/src/store/sled.rs
@@ -424,7 +424,7 @@ impl SledStore {
     }
 
     async fn load_tracked_users(&self) -> Result<()> {
-        for value in self.tracked_users.iter() {
+        for value in &self.tracked_users {
             let (user, dirty) = value?;
             let user = Box::<UserId>::try_from(String::from_utf8_lossy(&user).to_string())?;
             let dirty = dirty.get(0).map(|d| *d == 1).unwrap_or(true);
diff --git a/crates/matrix-sdk-crypto/src/verification/sas/helpers.rs b/crates/matrix-sdk-crypto/src/verification/sas/helpers.rs
index c7df219c1..4e50b193f 100644
--- a/crates/matrix-sdk-crypto/src/verification/sas/helpers.rs
+++ b/crates/matrix-sdk-crypto/src/verification/sas/helpers.rs
@@ -606,8 +606,8 @@ mod test {
         fn proptest_emoji(bytes in prop::array::uniform6(0u8..)) {
             let numbers = bytes_to_emoji_index(bytes.to_vec());
 
-            for number in numbers.iter() {
-                prop_assert!(*number < 64);
+            for number in numbers {
+                prop_assert!(number < 64);
             }
         }
     }