diff --git a/Forc.lock b/Forc.lock
index b6dcf63..8b02a2f 100644
--- a/Forc.lock
+++ b/Forc.lock
@@ -10,7 +10,7 @@ dependencies = [
 
 [[package]]
 name = "core"
-source = "path+from-root-8357A6DDC5F39D14"
+source = "path+from-root-7053AAA90CC5E690"
 
 [[package]]
 name = "create_pool_and_add_liquidity_script"
@@ -47,7 +47,7 @@ dependencies = [
 
 [[package]]
 name = "std"
-source = "git+https://github.com/fuellabs/sway?tag=v0.65.2#66bb430395daf5b8f7205f7b9d8d008e2e812d54"
+source = "git+https://github.com/fuellabs/sway?tag=v0.66.2#31486c0b47669612acb7c64d66ecb50aea281282"
 dependencies = ["core"]
 
 [[package]]
diff --git a/fixtures/mira-amm/mira_amm_contract-abi.json b/fixtures/mira-amm/mira_amm_contract-abi.json
index 19d4590..01436ee 100644
--- a/fixtures/mira-amm/mira_amm_contract-abi.json
+++ b/fixtures/mira-amm/mira_amm_contract-abi.json
@@ -1153,12 +1153,12 @@
     {
       "name": "LP_FEE_VOLATILE",
       "concreteTypeId": "1506e6f44c1d6291cdf46395a8e573276a4fa79e8ace3fc891e092ef32d1b0a0",
-      "offset": 62440
+      "offset": 62416
     },
     {
       "name": "LP_FEE_STABLE",
       "concreteTypeId": "1506e6f44c1d6291cdf46395a8e573276a4fa79e8ace3fc891e092ef32d1b0a0",
-      "offset": 62432
+      "offset": 62408
     }
   ]
 }
\ No newline at end of file
diff --git a/fixtures/mira-amm/mira_amm_contract.bin b/fixtures/mira-amm/mira_amm_contract.bin
index 92330da..c661d25 100644
Binary files a/fixtures/mira-amm/mira_amm_contract.bin and b/fixtures/mira-amm/mira_amm_contract.bin differ
diff --git a/libraries/math/src/pool_math.sw b/libraries/math/src/pool_math.sw
index 8bb07d2..323c470 100644
--- a/libraries/math/src/pool_math.sw
+++ b/libraries/math/src/pool_math.sw
@@ -247,7 +247,7 @@ fn k(
         let _y: u256 = y * ONE_E_18 / pow_decimals_y;
         let _a: u256 = (_x * _y) / ONE_E_18;
         let _b: u256 = ((_x * _x) / ONE_E_18 + (_y * _y) / ONE_E_18);
-        return _a * _b / ONE_E_18; // x3y+y3x >= k
+        return _a * _b; // x3y+y3x >= k
     } else {
         return x * y; // xy >= k
     }
@@ -255,7 +255,7 @@ fn k(
 
 // TODO: combine with `k` above?
 fn f(x_0: u256, y: u256) -> u256 {
-    x_0 * (y * y / ONE_E_18 * y / ONE_E_18) / ONE_E_18 + (x_0 * x_0 / ONE_E_18 * x_0 / ONE_E_18) * y / ONE_E_18
+    x_0 * (y * y / ONE_E_18 * y / ONE_E_18) + (x_0 * x_0 / ONE_E_18 * x_0 / ONE_E_18) * y
 }
 
 fn d(x_0: u256, y: u256) -> u256 {
@@ -269,10 +269,10 @@ fn get_y(x_0: u256, xy: u256, y: u256) -> u256 {
         let y_prev = y;
         let k = f(x_0, y);
         if k < xy {
-            let dy = (xy - k) * ONE_E_18 / d(x_0, y);
+            let dy = (xy - k) / d(x_0, y);
             y = y + dy;
         } else {
-            let dy = (k - xy) * ONE_E_18 / d(x_0, y);
+            let dy = (k - xy) / d(x_0, y);
             y = y - dy;
         }
         if y > y_prev {