diff --git a/actors/miner/src/testing.rs b/actors/miner/src/testing.rs
index 79a0ece39..4559ed905 100644
--- a/actors/miner/src/testing.rs
+++ b/actors/miner/src/testing.rs
@@ -3,7 +3,7 @@ use crate::{
     SectorOnChainInfo, SectorPreCommitOnChainInfo, Sectors, State,
 };
 use fil_actors_runtime::runtime::Policy;
-use fil_actors_runtime::{parse_uint_key, Map, MessageAccumulator};
+use fil_actors_runtime::{parse_uint_key, Map, MessageAccumulator, DEFAULT_HAMT_CONFIG};
 use fvm_ipld_bitfield::BitField;
 use fvm_ipld_blockstore::Blockstore;
 use fvm_ipld_encoding::CborStore;
@@ -343,8 +343,11 @@ fn check_precommits<BS: Blockstore>(
 
     let mut precommit_total = TokenAmount::zero();
 
-    let precommited_sectors =
-        Map::<_, SectorPreCommitOnChainInfo>::load(&state.pre_committed_sectors, store);
+    let precommited_sectors = Map::<_, SectorPreCommitOnChainInfo>::load_with_config(
+        &state.pre_committed_sectors,
+        store,
+        DEFAULT_HAMT_CONFIG,
+    );
 
     match precommited_sectors {
         Ok(precommited_sectors) => {
diff --git a/state/src/check.rs b/state/src/check.rs
index 2988e7b22..cba3dc325 100644
--- a/state/src/check.rs
+++ b/state/src/check.rs
@@ -22,6 +22,7 @@ use fil_actor_reward::State as RewardState;
 use fil_actor_verifreg::{DataCap, State as VerifregState};
 
 use fil_actors_runtime::runtime::Policy;
+use fil_actors_runtime::DEFAULT_HAMT_CONFIG;
 use fil_actors_runtime::VERIFIED_REGISTRY_ACTOR_ADDR;
 
 use fil_actors_runtime::Map;
@@ -82,7 +83,7 @@ where
 impl<'a, BS: Blockstore> Tree<'a, BS> {
     /// Loads a tree from a root CID and store
     pub fn load(store: &'a BS, root: &Cid) -> anyhow::Result<Self> {
-        let map = Map::load(root, store)?;
+        let map = Map::load_with_config(root, store, DEFAULT_HAMT_CONFIG)?;
 
         Ok(Tree { map, store })
     }
diff --git a/test_vm/src/lib.rs b/test_vm/src/lib.rs
index 3a350a490..a68659b53 100644
--- a/test_vm/src/lib.rs
+++ b/test_vm/src/lib.rs
@@ -14,8 +14,8 @@ use fil_actor_verifreg::State as VerifRegState;
 use fil_actors_runtime::cbor::serialize;
 use fil_actors_runtime::runtime::builtins::Type;
 use fil_actors_runtime::runtime::{Policy, Primitives, EMPTY_ARR_CID};
-use fil_actors_runtime::test_utils::*;
 use fil_actors_runtime::DATACAP_TOKEN_ACTOR_ADDR;
+use fil_actors_runtime::{test_utils::*, DEFAULT_HAMT_CONFIG};
 use fil_actors_runtime::{
     BURNT_FUNDS_ACTOR_ADDR, CRON_ACTOR_ADDR, EAM_ACTOR_ADDR, INIT_ACTOR_ADDR, REWARD_ACTOR_ADDR,
     STORAGE_MARKET_ACTOR_ADDR, STORAGE_POWER_ACTOR_ADDR, SYSTEM_ACTOR_ADDR,
@@ -70,7 +70,11 @@ where
     BS: Blockstore,
 {
     pub fn new(store: &'bs MemoryBlockstore) -> TestVM<'bs, MemoryBlockstore> {
-        let mut actors = Hamt::<&'bs MemoryBlockstore, ActorState, BytesKey, Sha256>::new(store);
+        let mut actors =
+            Hamt::<&'bs MemoryBlockstore, ActorState, BytesKey, Sha256>::new_with_config(
+                store,
+                DEFAULT_HAMT_CONFIG,
+            );
         TestVM {
             primitives: FakePrimitives {},
             store,
@@ -240,9 +244,10 @@ where
 
     pub fn checkpoint(&self) -> Cid {
         // persist cache on top of latest checkpoint and clear
-        let mut actors = Hamt::<&'bs BS, ActorState, BytesKey, Sha256>::load(
+        let mut actors = Hamt::<&'bs BS, ActorState, BytesKey, Sha256>::load_with_config(
             &self.state_root.borrow(),
             self.store,
+            DEFAULT_HAMT_CONFIG,
         )
         .unwrap();
         for (addr, act) in self.actors_cache.borrow().iter() {
@@ -383,9 +388,10 @@ where
             return Some(act.clone());
         }
         // go to persisted map
-        let actors = Hamt::<&'bs BS, ActorState, BytesKey, Sha256>::load(
+        let actors = Hamt::<&'bs BS, ActorState, BytesKey, Sha256>::load_with_config(
             &self.state_root.borrow(),
             self.store,
+            DEFAULT_HAMT_CONFIG,
         )
         .unwrap();
         let actor = actors.get(&address.to_bytes()).unwrap().cloned();