diff --git a/Cargo.lock b/Cargo.lock
index 7e9819f..2f8d56f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -452,7 +452,7 @@ dependencies = [
 [[package]]
 name = "ethereum-consensus"
 version = "0.1.0"
-source = "git+https://github.com/datachainlab/ethereum-light-client-rs?rev=v0.1.4#8ef10cf5982d28cb9d71b126ca41d364dda18788"
+source = "git+https://github.com/datachainlab/ethereum-light-client-rs?rev=v0.1.5#6c2b3b0f1a58c4df3eedeb9a36de0e7fcab25007"
 dependencies = [
  "displaydoc",
  "hex",
@@ -478,7 +478,7 @@ dependencies = [
 [[package]]
 name = "ethereum-ibc"
 version = "0.1.0"
-source = "git+https://github.com/datachainlab/ethereum-ibc-rs?rev=v0.0.16#8243b634ae0953a9e0c2fd5f64c2b830723ab8f6"
+source = "git+https://github.com/datachainlab/ethereum-ibc-rs?rev=v0.0.17#23cba6fe3ff87df2ac8d4350a49a4c2811e5e156"
 dependencies = [
  "bytes",
  "displaydoc",
@@ -498,7 +498,7 @@ dependencies = [
 [[package]]
 name = "ethereum-ibc-proto"
 version = "0.1.0"
-source = "git+https://github.com/datachainlab/ethereum-ibc-rs?rev=v0.0.16#8243b634ae0953a9e0c2fd5f64c2b830723ab8f6"
+source = "git+https://github.com/datachainlab/ethereum-ibc-rs?rev=v0.0.17#23cba6fe3ff87df2ac8d4350a49a4c2811e5e156"
 dependencies = [
  "prost",
  "serde",
@@ -507,7 +507,7 @@ dependencies = [
 [[package]]
 name = "ethereum-light-client-verifier"
 version = "0.1.0"
-source = "git+https://github.com/datachainlab/ethereum-light-client-rs?rev=v0.1.4#8ef10cf5982d28cb9d71b126ca41d364dda18788"
+source = "git+https://github.com/datachainlab/ethereum-light-client-rs?rev=v0.1.5#6c2b3b0f1a58c4df3eedeb9a36de0e7fcab25007"
 dependencies = [
  "displaydoc",
  "ethereum-consensus",
diff --git a/Cargo.toml b/Cargo.toml
index 9b5037d..bc702e8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,4 +9,4 @@ displaydoc = { version = "0.2", default-features = false }
 tiny-keccak = { version = "1.4" }
 
 light-client = { git = "https://github.com/datachainlab/lcp", rev = "v0.2.11", default-features = false, features = ["ibc"] }
-ethereum-ibc = { git = "https://github.com/datachainlab/ethereum-ibc-rs", rev = "v0.0.16", default-features = false }
+ethereum-ibc = { git = "https://github.com/datachainlab/ethereum-ibc-rs", rev = "v0.0.17", default-features = false }
diff --git a/src/client.rs b/src/client.rs
index 52633c3..11dd667 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -117,13 +117,10 @@ impl<const SYNC_COMMITTEE_SIZE: usize> LightClient for EthereumLightClient<SYNC_
         let (client_state, consensus_state, prefix, path, proof) =
             Self::validate_args(ctx, client_id, prefix, path, proof_height, proof)?;
 
-        client_state
-            .verify_height(proof_height.try_into().map_err(Error::ICS02)?)
-            .map_err(|e| Error::ICS02(e.into()))?;
-
         let value = keccak256(&value);
         client_state
             .verify_membership(
+                proof_height.try_into().map_err(Error::ICS02)?,
                 &prefix,
                 &proof,
                 consensus_state.root(),
@@ -160,11 +157,13 @@ impl<const SYNC_COMMITTEE_SIZE: usize> LightClient for EthereumLightClient<SYNC_
             Self::validate_args(ctx, client_id, prefix, path, proof_height, proof)?;
 
         client_state
-            .verify_height(proof_height.try_into().map_err(Error::ICS02)?)
-            .map_err(|e| Error::ICS02(e.into()))?;
-
-        client_state
-            .verify_non_membership(&prefix, &proof, consensus_state.root(), path.clone())
+            .verify_non_membership(
+                proof_height.try_into().map_err(Error::ICS02)?,
+                &prefix,
+                &proof,
+                consensus_state.root(),
+                path.clone(),
+            )
             .map_err(|e| {
                 Error::ICS02(ClientError::ClientSpecific {
                     description: e.to_string(),
@@ -206,13 +205,6 @@ impl<const SYNC_COMMITTEE_SIZE: usize> EthereumLightClient<SYNC_COMMITTEE_SIZE>
                 .try_into()
                 .map_err(Error::ICS02)?;
 
-        if client_state.is_frozen() {
-            return Err(Error::ICS02(ClientError::ClientFrozen {
-                client_id: client_id.into(),
-            })
-            .into());
-        }
-
         let consensus_state: ConsensusState =
             IBCAny::from(ctx.consensus_state(&client_id, &proof_height)?)
                 .try_into()
@@ -236,13 +228,6 @@ impl<const SYNC_COMMITTEE_SIZE: usize> EthereumLightClient<SYNC_COMMITTEE_SIZE>
                 .try_into()
                 .map_err(Error::ICS02)?;
 
-        if client_state.is_frozen() {
-            return Err(Error::ICS02(ClientError::ClientFrozen {
-                client_id: client_id.into(),
-            })
-            .into());
-        }
-
         let height = header.height().into();
         let header_timestamp: Time = header.timestamp().into();
         let trusted_height = header.trusted_sync_committee.height;
@@ -322,13 +307,6 @@ impl<const SYNC_COMMITTEE_SIZE: usize> EthereumLightClient<SYNC_COMMITTEE_SIZE>
                 .try_into()
                 .map_err(Error::ICS02)?;
 
-        if client_state.is_frozen() {
-            return Err(Error::ICS02(ClientError::ClientFrozen {
-                client_id: client_id.into(),
-            })
-            .into());
-        }
-
         let trusted_height = misbehaviour.trusted_sync_committee.height;
         let trusted_consensus_state: ConsensusState = IBCAny::from(
             ctx.consensus_state(&client_id, &trusted_height.into())
diff --git a/src/state.rs b/src/state.rs
index 5a89324..b1fe36d 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -5,13 +5,12 @@ use light_client::commitments::{gen_state_id_from_any, StateID};
 use light_client::types::proto::google::protobuf::Any as IBCAny;
 
 // canonicalize_client_state canonicalizes some fields of specified client state
-// target fields: latest_execution_block_number, frozen_height
+// target fields: latest_execution_block_number
 pub fn canonicalize_client_state<const SYNC_COMMITTEE_SIZE: usize>(
     client_state: ClientState<SYNC_COMMITTEE_SIZE>,
 ) -> ClientState<SYNC_COMMITTEE_SIZE> {
     let mut client_state = client_state;
     client_state.latest_execution_block_number = 0u64.into();
-    client_state.frozen_height = None;
     client_state
 }