diff --git a/.circleci/config.yml b/.circleci/config.yml
index ca73378..d26ef05 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -5,8 +5,7 @@ executors:
     docker:
     - image: rust:1.81.0
   ubuntu:
-    machine: 
-      image: ubuntu-2004:202201-02
+    machine: true
   ci-builds:
     docker:
     - image: cibuilds/github:0.13
diff --git a/contracts/price-feed/schema/instantiate_msg.json b/contracts/price-feed/schema/instantiate_msg.json
index c94003b..67bed73 100644
--- a/contracts/price-feed/schema/instantiate_msg.json
+++ b/contracts/price-feed/schema/instantiate_msg.json
@@ -6,6 +6,7 @@
     "ask_count",
     "client_id",
     "execute_gas",
+    "fee",
     "fee_limit",
     "min_count",
     "minimum_sources",
@@ -22,6 +23,12 @@
     "execute_gas": {
       "$ref": "#/definitions/Uint64"
     },
+    "fee": {
+      "type": "array",
+      "items": {
+        "$ref": "#/definitions/Coin"
+      }
+    },
     "fee_limit": {
       "type": "array",
       "items": {
@@ -58,7 +65,8 @@
         "denom": {
           "type": "string"
         }
-      }
+      },
+      "additionalProperties": false
     },
     "Uint128": {
       "description": "A thin wrapper around u128 that is using strings for JSON encoding/decoding, such that the full u128 range can be used for clients that convert JSON numbers to floats, like JavaScript and jq.\n\n# Examples\n\nUse `from` to create instances of this and `u128` to get the value out:\n\n``` # use cosmwasm_std::Uint128; let a = Uint128::from(123u128); assert_eq!(a.u128(), 123);\n\nlet b = Uint128::from(42u64); assert_eq!(b.u128(), 42);\n\nlet c = Uint128::from(70u32); assert_eq!(c.u128(), 70); ```",
diff --git a/contracts/price-feed/examples/schema.rs b/contracts/price-feed/src/bin/schema.rs
similarity index 100%
rename from contracts/price-feed/examples/schema.rs
rename to contracts/price-feed/src/bin/schema.rs