diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ece8a6..29dea9e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@ Changelog
 =========
 All notable changes to this project will be documented in this file.
 
+v1.1.1-alpha
+-------------
+
+### Changed
+
+- Fixed all float64 that were mapped to int64
+- Changed destination constants values to start from iota
+
 v1.1.0-alpha
 -------------
 
diff --git a/README.md b/README.md
index 61efd66..c8b17b3 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ Installation
 -----------------
 
 ```bash
-go get github.com/amir-the-h/okex@v1.1.0-alpha
+go get github.com/amir-the-h/okex@v1.1.1-alpha
 ```
 
 Usage
diff --git a/definitions.go b/definitions.go
index d8e3b2a..cb5b721 100644
--- a/definitions.go
+++ b/definitions.go
@@ -58,6 +58,10 @@ type (
 )
 
 const (
+	NormalServer Destination = iota
+	AwsServer
+	DemoServer
+
 	RestURL      = BaseURL("https://www.okx.com")
 	PublicWsURL  = BaseURL("wss://ws.okx.com:8443/ws/v5/public")
 	PrivateWsURL = BaseURL("wss://ws.okx.com:8443/ws/v5/private")
@@ -70,10 +74,6 @@ const (
 	DemoPublicWsURL  = BaseURL("wss://wspap.okx.com:8443/ws/v5/public?brokerId=9999")
 	DemoPrivateWsURL = BaseURL("wss://wspap.okx.com:8443/ws/v5/private?brokerId=9999")
 
-	NormalServer = Destination(iota + 1)
-	AwsServer    = NormalServer + 1
-	DemoServer   = AwsServer + 1
-
 	SpotInstrument    = InstrumentType("SPOT")
 	MarginInstrument  = InstrumentType("MARGIN")
 	SwapInstrument    = InstrumentType("SWAP")
diff --git a/models/funding/funding_models.go b/models/funding/funding_models.go
index 21b1407..6ffb7ed 100644
--- a/models/funding/funding_models.go
+++ b/models/funding/funding_models.go
@@ -74,7 +74,7 @@ type (
 		PmtID string               `json:"pmtId,omitempty"`
 		Memo  string               `json:"memo,omitempty"`
 		Amt   okex.JSONFloat64     `json:"amt"`
-		Fee   okex.JSONInt64       `json:"fee"`
+		Fee   okex.JSONFloat64     `json:"fee"`
 		WdID  okex.JSONInt64       `json:"wdId"`
 		State okex.WithdrawalState `json:"state,string"`
 		TS    okex.JSONTime        `json:"ts"`
diff --git a/models/trade/trade_models.go b/models/trade/trade_models.go
index 7814e04..7a22959 100644
--- a/models/trade/trade_models.go
+++ b/models/trade/trade_models.go
@@ -40,11 +40,11 @@ type (
 		FeeCcy      string              `json:"feeCcy"`
 		RebateCcy   string              `json:"rebateCcy"`
 		Px          okex.JSONFloat64    `json:"px"`
-		Sz          okex.JSONInt64      `json:"sz"`
+		Sz          okex.JSONFloat64    `json:"sz"`
 		Pnl         okex.JSONFloat64    `json:"pnl"`
-		AccFillSz   okex.JSONInt64      `json:"accFillSz"`
+		AccFillSz   okex.JSONFloat64    `json:"accFillSz"`
 		FillPx      okex.JSONFloat64    `json:"fillPx"`
-		FillSz      okex.JSONInt64      `json:"fillSz"`
+		FillSz      okex.JSONFloat64    `json:"fillSz"`
 		FillTime    okex.JSONFloat64    `json:"fillTime"`
 		AvgPx       okex.JSONFloat64    `json:"avgPx"`
 		Lever       okex.JSONFloat64    `json:"lever"`
@@ -107,14 +107,14 @@ type (
 		PxVar        okex.JSONFloat64    `json:"pxVar"`
 		PxSpread     okex.JSONFloat64    `json:"pxSpread"`
 		PxLimit      okex.JSONFloat64    `json:"pxLimit"`
-		Sz           okex.JSONInt64      `json:"sz"`
-		SzLimit      okex.JSONInt64      `json:"szLimit"`
+		Sz           okex.JSONFloat64    `json:"sz"`
+		SzLimit      okex.JSONFloat64    `json:"szLimit"`
 		ActualSz     okex.JSONFloat64    `json:"actualSz"`
 		ActualPx     okex.JSONFloat64    `json:"actualPx"`
 		Pnl          okex.JSONFloat64    `json:"pnl"`
-		AccFillSz    okex.JSONInt64      `json:"accFillSz"`
+		AccFillSz    okex.JSONFloat64    `json:"accFillSz"`
 		FillPx       okex.JSONFloat64    `json:"fillPx"`
-		FillSz       okex.JSONInt64      `json:"fillSz"`
+		FillSz       okex.JSONFloat64    `json:"fillSz"`
 		FillTime     okex.JSONFloat64    `json:"fillTime"`
 		AvgPx        okex.JSONFloat64    `json:"avgPx"`
 		Lever        okex.JSONFloat64    `json:"lever"`