diff --git a/.changelog/unreleased/bug-fixes/819-remove-mocks-no-std-traces.md b/.changelog/unreleased/bug-fixes/819-remove-mocks-no-std-traces.md
new file mode 100644
index 000000000..4aadca5b1
--- /dev/null
+++ b/.changelog/unreleased/bug-fixes/819-remove-mocks-no-std-traces.md
@@ -0,0 +1,2 @@
+- Remove traces of deprecated `mocks-no-std` feature
+  ([#819](https://github.com/cosmos/ibc-rs/issues/821))
diff --git a/crates/ibc/src/lib.rs b/crates/ibc/src/lib.rs
index 234af7a48..68004e69f 100644
--- a/crates/ibc/src/lib.rs
+++ b/crates/ibc/src/lib.rs
@@ -53,7 +53,7 @@ pub mod clients;
 pub mod core;
 pub mod hosts;
 
-#[cfg(any(test, feature = "mocks", feature = "mocks-no-std"))]
+#[cfg(any(test, feature = "mocks"))]
 pub mod mock;
 #[cfg(any(test, feature = "mocks"))]
 pub mod test_utils; // Context mock, the underlying host chain, and client types: for testing all handlers.
diff --git a/crates/ibc/src/mock/mod.rs b/crates/ibc/src/mock/mod.rs
index a2450b5a2..9492569c2 100644
--- a/crates/ibc/src/mock/mod.rs
+++ b/crates/ibc/src/mock/mod.rs
@@ -1,18 +1,18 @@
 //! Implementation of mocks for context, host chain, and client.
 
-#[cfg(any(test, feature = "mocks", feature = "mocks-no-std"))]
+#[cfg(any(test, feature = "mocks"))]
 pub mod client_state;
-#[cfg(any(test, feature = "mocks", feature = "mocks-no-std"))]
+#[cfg(any(test, feature = "mocks"))]
 pub mod consensus_state;
 #[cfg(any(test, feature = "mocks"))]
 pub mod context;
-#[cfg(any(test, feature = "mocks", feature = "mocks-no-std"))]
+#[cfg(any(test, feature = "mocks"))]
 pub mod header;
 #[cfg(any(test, feature = "mocks"))]
 pub mod host;
 #[cfg(any(test, feature = "mocks"))]
 pub mod ics18_relayer;
-#[cfg(any(test, feature = "mocks", feature = "mocks-no-std"))]
+#[cfg(any(test, feature = "mocks"))]
 pub mod misbehaviour;
 #[cfg(any(test, feature = "mocks"))]
 pub mod router;