diff --git a/src/async_client.rs b/src/async_client.rs
index 8a4a5d60..beae3f49 100644
--- a/src/async_client.rs
+++ b/src/async_client.rs
@@ -13,7 +13,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use std::collections::{BTreeMap, HashMap};
+#[cfg(feature = "encryption")]
+use std::collections::BTreeMap;
+use std::collections::HashMap;
 use std::convert::{TryFrom, TryInto};
 use std::result::Result as StdResult;
 use std::sync::Arc;
diff --git a/src/request_builder.rs b/src/request_builder.rs
index 8d61d05d..f9d58d14 100644
--- a/src/request_builder.rs
+++ b/src/request_builder.rs
@@ -290,7 +290,7 @@ impl Into<get_message_events::Request> for MessagesRequestBuilder {
 
 #[cfg(test)]
 mod test {
-    use std::collections::{BTreeMap, HashMap};
+    use std::collections::BTreeMap;
 
     use super::*;
     use crate::events::room::power_levels::NotificationPowerLevels;