diff --git a/packages/protocol/contracts/L1/tiers/HeklaTierProvider.sol b/packages/protocol/contracts/L1/tiers/HeklaTierProvider.sol
index 5445dfac01..9d5098fdf1 100644
--- a/packages/protocol/contracts/L1/tiers/HeklaTierProvider.sol
+++ b/packages/protocol/contracts/L1/tiers/HeklaTierProvider.sol
@@ -65,9 +65,7 @@ contract HeklaTierProvider is EssentialContract, ITierProvider {
 
     /// @inheritdoc ITierProvider
     function getMinTier(uint256 _rand) public pure override returns (uint16) {
-        // 50% will be selected to require SGX proofs.
-        if (_rand % 2 == 0) return LibTiers.TIER_SGX;
-        // Other blocks are optimistic, without validity proofs.
-        return LibTiers.TIER_OPTIMISTIC;
+        // All blocks require SGX proofs.
+        return LibTiers.TIER_SGX;
     }
 }
diff --git a/packages/protocol/deployments/hekla-contract-logs.md b/packages/protocol/deployments/hekla-contract-logs.md
index 3e6389d4b6..6d3a5f443d 100644
--- a/packages/protocol/deployments/hekla-contract-logs.md
+++ b/packages/protocol/deployments/hekla-contract-logs.md
@@ -106,9 +106,9 @@
 
 ### tierProvider
 
-- impl: `0x02932D1c8C9EBf283aA809E7591A070c82b1696D`
+- impl: `0x750D885DCAB712bA808D66D934CF315D0D98d04c.`
 - logs:
-  - upgraded on May 10, 2024 at commit `4903bec`
+  - upgraded on May 14, 2024 at commit `0ef7b8caa`
 
 ### guardian_prover_minority