diff --git a/beacon_node/network/src/service/tests.rs b/beacon_node/network/src/service/tests.rs
index 240e16c7c..66d23234d 100644
--- a/beacon_node/network/src/service/tests.rs
+++ b/beacon_node/network/src/service/tests.rs
@@ -4,7 +4,7 @@ mod tests {
     use crate::persisted_dht::load_dht;
     use crate::{NetworkConfig, NetworkService};
     use beacon_chain::test_utils::{
-        BeaconChainHarness, EphemeralTestingSlotClockHarnessType as HarnessType,
+        BeaconChainHarness, EphemeralSystemTimeSlotClockHarnessType as HarnessType,
     };
     use lighthouse_network::Enr;
     use slog::{o, Drain, Level, Logger};
diff --git a/beacon_node/network/src/sync/block_lookups/tests.rs b/beacon_node/network/src/sync/block_lookups/tests.rs
index c45fe545e..c310d61b4 100644
--- a/beacon_node/network/src/sync/block_lookups/tests.rs
+++ b/beacon_node/network/src/sync/block_lookups/tests.rs
@@ -10,7 +10,7 @@ use beacon_chain::{
     builder::Witness,
     eth1_chain::CachingEth1Backend,
     test_utils::{
-        build_log, BeaconChainHarness, EphemeralTestingSlotClockHarnessType as HarnessType,
+        build_log, BeaconChainHarness, EphemeralSystemTimeSlotClockHarnessType as HarnessType,
     },
 };
 pub use genesis::{interop_genesis_state, DEFAULT_ETH1_BLOCK_HASH};
diff --git a/beacon_node/network/src/sync/range_sync/range.rs b/beacon_node/network/src/sync/range_sync/range.rs
index 4291abd52..afa42371b 100644
--- a/beacon_node/network/src/sync/range_sync/range.rs
+++ b/beacon_node/network/src/sync/range_sync/range.rs
@@ -382,7 +382,7 @@ mod tests {
         eth1_chain::CachingEth1Backend,
         parking_lot::RwLock,
         test_utils::{
-            build_log, BeaconChainHarness, EphemeralTestingSlotClockHarnessType as HarnessType,
+            build_log, BeaconChainHarness, EphemeralSystemTimeSlotClockHarnessType as HarnessType,
         },
         EngineState,
     };