diff --git a/lightclient-circuits/config/committee_update_20.json b/lightclient-circuits/config/committee_update_20.json
new file mode 100644
index 0000000..4bea29b
--- /dev/null
+++ b/lightclient-circuits/config/committee_update_20.json
@@ -0,0 +1,21 @@
+{
+  "params": {
+    "k": 20,
+    "num_advice_per_phase": [
+      2
+    ],
+    "num_fixed": 1,
+    "num_lookup_advice_per_phase": [
+      1,
+      0,
+      0
+    ],
+    "lookup_bits": 19,
+    "num_instance_columns": 1
+  },
+  "break_points": [
+    [
+      1048566
+    ]
+  ]
+}
\ No newline at end of file
diff --git a/lightclient-circuits/config/committee_update_verifier_24.json b/lightclient-circuits/config/committee_update_verifier_24.json
new file mode 100644
index 0000000..c38fdce
--- /dev/null
+++ b/lightclient-circuits/config/committee_update_verifier_24.json
@@ -0,0 +1,12 @@
+{
+  "params": {
+    "degree": 24,
+    "num_advice": 1,
+    "num_lookup_advice": 1,
+    "num_fixed": 1,
+    "lookup_bits": 23
+  },
+  "break_points": [
+    []
+  ]
+}
\ No newline at end of file
diff --git a/lightclient-circuits/config/sync_step_20.json b/lightclient-circuits/config/sync_step_20.json
new file mode 100644
index 0000000..a1396fe
--- /dev/null
+++ b/lightclient-circuits/config/sync_step_20.json
@@ -0,0 +1,31 @@
+{
+  "params": {
+    "k": 20,
+    "num_advice_per_phase": [
+      12
+    ],
+    "num_fixed": 1,
+    "num_lookup_advice_per_phase": [
+      2,
+      0,
+      0
+    ],
+    "lookup_bits": 19,
+    "num_instance_columns": 1
+  },
+  "break_points": [
+    [
+      1048566,
+      1048564,
+      1048566,
+      1048566,
+      1048565,
+      1048566,
+      1048566,
+      1048566,
+      1048564,
+      1048566,
+      1048566
+    ]
+  ]
+}
\ No newline at end of file
diff --git a/lightclient-circuits/config/sync_step_verifier_23.json b/lightclient-circuits/config/sync_step_verifier_23.json
new file mode 100644
index 0000000..f64047e
--- /dev/null
+++ b/lightclient-circuits/config/sync_step_verifier_23.json
@@ -0,0 +1,12 @@
+{
+  "params": {
+    "degree": 23,
+    "num_advice": 1,
+    "num_lookup_advice": 1,
+    "num_fixed": 1,
+    "lookup_bits": 19
+  },
+  "break_points": [
+    []
+  ]
+}
\ No newline at end of file
diff --git a/lightclient-circuits/src/committee_update_circuit.rs b/lightclient-circuits/src/committee_update_circuit.rs
index 6cecf27..a806572 100644
--- a/lightclient-circuits/src/committee_update_circuit.rs
+++ b/lightclient-circuits/src/committee_update_circuit.rs
@@ -308,7 +308,7 @@ mod tests {
 
     #[test]
     fn test_committee_update_circuit() {
-        const K: u32 = 18;
+        const K: u32 = 20;
         let witness = load_circuit_args();
         let params: ParamsKZG<Bn256> = gen_srs(K);
 
@@ -330,11 +330,11 @@ mod tests {
 
     #[test]
     fn test_committee_update_proofgen() {
-        const K: u32 = 18;
+        const K: u32 = 20;
         let params = gen_srs(K);
 
-        const PINNING_PATH: &str = "./config/committee_update_18.json";
-        const PKEY_PATH: &str = "../build/committee_update_18.pkey";
+        const PINNING_PATH: &str = "./config/committee_update_20.json";
+        const PKEY_PATH: &str = "../build/committee_update_20.pkey";
 
         let pk = CommitteeUpdateCircuit::<Testnet, Fr>::create_pk(
             &params,
@@ -360,7 +360,7 @@ mod tests {
         const APP_K: u32 = 20;
         const APP_PK_PATH: &str = "../build/committee_update_20.pkey";
         const APP_PINNING_PATH: &str = "./config/committee_update_20.json";
-        const AGG_K: u32 = 25;
+        const AGG_K: u32 = 24;
         const AGG_PK_PATH: &str = "../build/committee_update_verifier_24.pkey";
         const AGG_CONFIG_PATH: &str = "./config/committee_update_verifier_24.json";
         let params_app = gen_srs(APP_K);
diff --git a/lightclient-circuits/src/sync_step_circuit.rs b/lightclient-circuits/src/sync_step_circuit.rs
index 86a2f01..80d70c5 100644
--- a/lightclient-circuits/src/sync_step_circuit.rs
+++ b/lightclient-circuits/src/sync_step_circuit.rs
@@ -485,13 +485,13 @@ mod tests {
 
     #[test]
     fn test_step_proofgen() {
-        const K: u32 = 22;
+        const K: u32 = 20;
         let params = gen_srs(K);
 
         let pk = StepCircuit::<Testnet, Fr>::create_pk(
             &params,
-            "../build/sync_step_22.pkey",
-            "./config/sync_step_22.json",
+            "../build/sync_step_20.pkey",
+            "./config/sync_step_20.json",
             &SyncStepArgs::<Testnet>::default(),
             None,
         );
@@ -501,7 +501,7 @@ mod tests {
         let _ = StepCircuit::<Testnet, Fr>::gen_proof_shplonk(
             &params,
             &pk,
-            "./config/sync_step_22.json",
+            "./config/sync_step_20.json",
             &witness,
         )
         .expect("proof generation & verification should not fail");
@@ -509,20 +509,20 @@ mod tests {
 
     #[test]
     fn test_step_evm_verify() {
-        const K: u32 = 22;
+        const K: u32 = 20;
         let params = gen_srs(K);
 
         let pk = StepCircuit::<Testnet, Fr>::create_pk(
             &params,
-            "../build/sync_step_22.pkey",
-            "./config/sync_step_22.json",
+            "../build/sync_step_20.pkey",
+            "./config/sync_step_20.json",
             &SyncStepArgs::<Testnet>::default(),
             None,
         );
 
         let witness = load_circuit_args();
 
-        let pinning = Eth2ConfigPinning::from_path("./config/sync_step_22.json");
+        let pinning = Eth2ConfigPinning::from_path("./config/sync_step_20.json");
 
         let circuit = StepCircuit::<Testnet, Fr>::create_circuit(
             CircuitBuilderStage::Prover,