diff --git a/.changeset/tame-paws-itch.md b/.changeset/tame-paws-itch.md
new file mode 100644
index 0000000000..25f47e49dc
--- /dev/null
+++ b/.changeset/tame-paws-itch.md
@@ -0,0 +1,5 @@
+---
+"@venusprotocol/evm": minor
+---
+
+enable marketParticipantCounts feature on Optimism mainnet
diff --git a/apps/evm/src/hooks/useIsFeatureEnabled/index.tsx b/apps/evm/src/hooks/useIsFeatureEnabled/index.tsx
index 75a9c8a1bd..0f79a0c350 100644
--- a/apps/evm/src/hooks/useIsFeatureEnabled/index.tsx
+++ b/apps/evm/src/hooks/useIsFeatureEnabled/index.tsx
@@ -55,6 +55,7 @@ export const featureFlags = {
     ChainId.ZKSYNC_SEPOLIA,
     ChainId.ZKSYNC_MAINNET,
     ChainId.OPTIMISM_SEPOLIA,
+    ChainId.OPTIMISM_MAINNET,
   ],
   isolatedPools: [
     ChainId.BSC_MAINNET,