diff --git a/Anchor.toml b/Anchor.toml
index b736f835..a14bc90d 100644
--- a/Anchor.toml
+++ b/Anchor.toml
@@ -12,5 +12,8 @@ members = ["programs/invariant", "programs/staker"]
 invariant = "HyaB3W9q6XdA5xwpU4XnSZV94htfmbmqJXZcEbRaJutt"
 staker = "MJ6WF1tpEJ7Gk8ULqejDJapRfqBwBEp1dH5QvAgYxu9"
 
+[programs.devnet]
+invariant = "D8Xd5VFXJeANivc4LXEzYqiE8q2CGVbjym5JiynPCP6J"
+
 [scripts]
 test = "ts-mocha -p ./tsconfig.json -t 1000000"
diff --git a/docs/docs/solana/quick_start.md b/docs/docs/solana/quick_start.md
index cc1ac37f..4da1a30f 100644
--- a/docs/docs/solana/quick_start.md
+++ b/docs/docs/solana/quick_start.md
@@ -26,12 +26,13 @@ import { Market, Pair } from '@invariant-labs/sdk'
 
 | Endpoint |                  Program ID                  |
 | -------- | :------------------------------------------: |
-| Devnet   | 9aiirQKPZ2peE9QrXYmsbTtR7wSDJi2HkQdHuaMpTpei |
+| Devnet   | D8Xd5VFXJeANivc4LXEzYqiE8q2CGVbjym5JiynPCP6J |
 | Mainnet  | 48XDC18nH5FLq8kKfE6MJK2hcPFD7xsJQc4dSAgQWNAi |
 
 Data structures are an exact mapping, with the only changes being type and case. Methods called by a user have a corresponding method, that creates instructions, adds them to transaction, signs, and sends it. All methods (including ones used only by admin) have corresponding methods that return just the instruction.
 
 Before you begin making your first pool and position, you must first construct the market as shown below.
+
 ```ts
 const market = await Market.build([Network.MAIN | Network.DEV], provider.wallet, connection)
 ```
diff --git a/scripts/staker/create-stake.ts b/scripts/staker/create-stake.ts
index 21eee6ac..1d2b0337 100644
--- a/scripts/staker/create-stake.ts
+++ b/scripts/staker/create-stake.ts
@@ -22,7 +22,7 @@ const INCENTIVE: PublicKey = new PublicKey('8Bhd6me9j6AS9N6f6BxRZkgsY9nBaEBzq2ma
 const TOKEN_X: PublicKey = new PublicKey(MOCK_TOKENS.USDC)
 const TOKEN_Y: PublicKey = new PublicKey(MOCK_TOKENS.SOL)
 const POSITION_INDEX = 0
-const INVARIANT = new PublicKey('9aiirQKPZ2peE9QrXYmsbTtR7wSDJi2HkQdHuaMpTpei')
+const INVARIANT = new PublicKey('D8Xd5VFXJeANivc4LXEzYqiE8q2CGVbjym5JiynPCP6J')
 const FEE_TIER = FEE_TIERS[0]
 
 const main = async () => {
diff --git a/sdk/package.json b/sdk/package.json
index 33a73013..c538b612 100644
--- a/sdk/package.json
+++ b/sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@invariant-labs/sdk",
-  "version": "0.9.66",
+  "version": "0.9.67",
   "description": "",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
diff --git a/sdk/src/network.ts b/sdk/src/network.ts
index d2879645..572b3655 100644
--- a/sdk/src/network.ts
+++ b/sdk/src/network.ts
@@ -9,7 +9,7 @@ export const getMarketAddress = (network: Network) => {
     case Network.LOCAL:
       return 'HyaB3W9q6XdA5xwpU4XnSZV94htfmbmqJXZcEbRaJutt'
     case Network.DEV:
-      return '9aiirQKPZ2peE9QrXYmsbTtR7wSDJi2HkQdHuaMpTpei'
+      return 'D8Xd5VFXJeANivc4LXEzYqiE8q2CGVbjym5JiynPCP6J'
     case Network.MAIN:
       return 'HyaB3W9q6XdA5xwpU4XnSZV94htfmbmqJXZcEbRaJutt'
     default:
diff --git a/sdk/src/utils.ts b/sdk/src/utils.ts
index 80dd8265..8faa47ad 100644
--- a/sdk/src/utils.ts
+++ b/sdk/src/utils.ts
@@ -264,7 +264,7 @@ export const tou64 = (amount: BN) => {
 }
 
 export const fromFee = (fee: BN): BN => {
-  // e.g fee - BN(1) -> 0.001%
+  // 0.001%
   return fee.mul(FEE_OFFSET)
 }
 
@@ -280,21 +280,37 @@ export const feeToTickSpacing = (fee: BN): number => {
 }
 
 export const FEE_TIERS: FeeTier[] = [
+  // 0.001%
   { fee: fromFee(new BN(1)), tickSpacing: 1 },
+  // 0.003%
   { fee: fromFee(new BN(3)), tickSpacing: 1 },
+  // 0.005%
   { fee: fromFee(new BN(5)), tickSpacing: 1 },
+  // 0.01%
   { fee: fromFee(new BN(10)), tickSpacing: 1 },
+  // 0.02%
   { fee: fromFee(new BN(20)), tickSpacing: 5 },
+  // 0.05%
   { fee: fromFee(new BN(50)) },
+  // 0.1%
   { fee: fromFee(new BN(100)) },
+  // 0.2%
   { fee: fromFee(new BN(200)), tickSpacing: 5 },
+  // 0.3%
   { fee: fromFee(new BN(300)) },
+  // 0.5%
   { fee: fromFee(new BN(500)), tickSpacing: 5 },
+  // 1%
   { fee: fromFee(new BN(1000)) },
+  // 3%
   { fee: fromFee(new BN(3000)), tickSpacing: 5 },
+  // 5%
   { fee: fromFee(new BN(5000)), tickSpacing: 5 },
+  // 10%
   { fee: fromFee(new BN(10000)), tickSpacing: 5 },
+  // 25%
   { fee: fromFee(new BN(25000)), tickSpacing: 5 },
+  // 50%
   { fee: fromFee(new BN(50000)), tickSpacing: 5 }
 ]