diff --git a/src/Gatekeeper.sol b/src/Gatekeeper.sol
index 7997966..57cc807 100644
--- a/src/Gatekeeper.sol
+++ b/src/Gatekeeper.sol
@@ -79,8 +79,8 @@ contract Gatekeeper is IGatekeeper, IGatekeeperMetadata, IGatekeeperWeaver {
         uint256 i;
         for (; i < currentLevelCount;) {
             uint256 j = i << 1;
-            bytes32 left = bytes32(_treeNodes[session][j].upperLookupRecent(atBlock));
-            bytes32 right = bytes32(_treeNodes[session][j | 1].upperLookupRecent(atBlock));
+            bytes32 left = bytes32(_treeNodes[session][j].upperLookup(atBlock));
+            bytes32 right = bytes32(_treeNodes[session][j | 1].upperLookup(atBlock));
 
             currentLevel[i] = Hashes.efficientKeccak256(left, right);
             unchecked { ++i; }
@@ -115,7 +115,7 @@ contract Gatekeeper is IGatekeeper, IGatekeeperMetadata, IGatekeeperWeaver {
         uint256 i;
 
         for (; i < currentLevelCount;) {
-            currentLevel[i] = bytes32(_treeNodes[session][i].upperLookupRecent(atBlock));
+            currentLevel[i] = bytes32(_treeNodes[session][i].upperLookup(atBlock));
             unchecked { ++i; }
         }