diff --git a/.gitmodules b/.gitmodules
index fa69608..1f803bc 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "contracts"]
 	path = contracts
-	url = https://github.com/ChainSafe/spectre-contracts
+	url = https://github.com/ChainSafe/spectre-contracts.git
diff --git a/contracts b/contracts
index 4e972c5..a5d8d27 160000
--- a/contracts
+++ b/contracts
@@ -1 +1 @@
-Subproject commit 4e972c5410cf4235c0b48295f54a02418d86cc67
+Subproject commit a5d8d270ffa0d67e92770a7bcaa0acdfff76633b
diff --git a/lightclient-circuits/config/committee_update_mainnet.json b/lightclient-circuits/config/committee_update_mainnet.json
new file mode 100644
index 0000000..0b9df49
--- /dev/null
+++ b/lightclient-circuits/config/committee_update_mainnet.json
@@ -0,0 +1,21 @@
+{
+  "params": {
+    "k": 20,
+    "num_advice_per_phase": [
+      2
+    ],
+    "num_fixed": 1,
+    "num_lookup_advice_per_phase": [
+      0,
+      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_mainnet.json b/lightclient-circuits/config/committee_update_verifier_mainnet.json
new file mode 100644
index 0000000..c38fdce
--- /dev/null
+++ b/lightclient-circuits/config/committee_update_verifier_mainnet.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_mainnet.json b/lightclient-circuits/config/sync_step_mainnet.json
new file mode 100644
index 0000000..6a5bf49
--- /dev/null
+++ b/lightclient-circuits/config/sync_step_mainnet.json
@@ -0,0 +1,27 @@
+{
+  "params": {
+    "k": 21,
+    "num_advice_per_phase": [
+      8
+    ],
+    "num_fixed": 1,
+    "num_lookup_advice_per_phase": [
+      1,
+      0,
+      0
+    ],
+    "lookup_bits": 20,
+    "num_instance_columns": 1
+  },
+  "break_points": [
+    [
+      2097142,
+      2097140,
+      2097140,
+      2097140,
+      2097140,
+      2097140,
+      2097142
+    ]
+  ]
+}
\ No newline at end of file
diff --git a/lightclient-circuits/config/sync_step_verifier_mainnet.json b/lightclient-circuits/config/sync_step_verifier_mainnet.json
new file mode 100644
index 0000000..f64047e
--- /dev/null
+++ b/lightclient-circuits/config/sync_step_verifier_mainnet.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