diff --git a/.gitignore b/.gitignore
index 66fd13c..118d10b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,7 @@
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
+
+.idea/
+
+.DS_Store
\ No newline at end of file
diff --git a/README.md b/README.md
index f8790cb..e47addf 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 <p align="center">
 <img src="https://img.shields.io/badge/Golang-1.19-66ADD8?style=for-the-badge&logo=go" alt="go version" />
-<img src="https://img.shields.io/badge/Version-0.1.2-DD1199?style=for-the-badge&logo=github" alt="version" />
+<img src="https://img.shields.io/badge/Version-0.1.3-DD1199?style=for-the-badge&logo=github" alt="version" />
 <img src="https://img.shields.io/badge/Load_Test-1M-442266?style=for-the-badge&logo=k6" alt="version" />
 <br />
 </p>
@@ -39,8 +39,8 @@ import (
 )
 
 func main() {
-	h := pyramid.NewHeap[int](func(a any, b any) bool {
-		return a.(int) > b.(int)
+	h := pyramid.NewHeap[int](func(a int, b int) bool {
+		return a > b
 	})
 
 	h.Push(2)
@@ -64,8 +64,8 @@ type Data struct {
 }
 
 func main() {
-	h := pyramid.NewHeap[Data](func(a any, b any) bool {
-		return a.(Data).Priority < b.(Data).Priority
+	h := pyramid.NewHeap[Data](func(a Data, b Data) bool {
+		return a.Priority < b.Priority
 	})
 
 	for i := 0; i < 10; i++ {
@@ -92,8 +92,8 @@ for i := 2; i < 100; i++ {
     h.Push(i)
 }
 
-h.Update(special, 0, func(a any, b any) bool {
-    return a.(int) == b.(int)
+h.Update(special, 0, func(a int, b int) bool {
+    return a == b
 })
 ```
 
diff --git a/example/int/main.go b/example/int/main.go
index 00242c2..f4e1800 100644
--- a/example/int/main.go
+++ b/example/int/main.go
@@ -7,8 +7,8 @@ import (
 )
 
 func main() {
-	h := pyramid.NewHeap[int](func(a any, b any) bool {
-		return a.(int) > b.(int)
+	h := pyramid.NewHeap[int](func(a int, b int) bool {
+		return a > b
 	})
 
 	h.Push(2)
diff --git a/example/struct/main.go b/example/struct/main.go
index a677385..63b559a 100644
--- a/example/struct/main.go
+++ b/example/struct/main.go
@@ -12,8 +12,8 @@ type Data struct {
 }
 
 func main() {
-	h := pyramid.NewHeap[Data](func(a any, b any) bool {
-		return a.(Data).Priority < b.(Data).Priority
+	h := pyramid.NewHeap[Data](func(a Data, b Data) bool {
+		return a.Priority < b.Priority
 	})
 
 	for i := 0; i < 10; i++ {
diff --git a/example/update/complex/main.go b/example/update/complex/main.go
index 10c9d36..a11b1f9 100644
--- a/example/update/complex/main.go
+++ b/example/update/complex/main.go
@@ -12,8 +12,8 @@ type Data struct {
 }
 
 func main() {
-	h := pyramid.NewHeap[*Data](func(a any, b any) bool {
-		return a.(*Data).Priority < b.(*Data).Priority
+	h := pyramid.NewHeap[*Data](func(a *Data, b *Data) bool {
+		return a.Priority < b.Priority
 	})
 
 	special := &Data{
@@ -29,8 +29,8 @@ func main() {
 
 	special.Priority = 0
 
-	h.Update(special, special, func(a any, b any) bool {
-		return a.(*Data).Data == b.(*Data).Data
+	h.Update(special, special, func(a *Data, b *Data) bool {
+		return a.Data == b.Data
 	})
 
 	for h.Length() > 0 {
diff --git a/example/update/simple/main.go b/example/update/simple/main.go
index 7b9d2c5..5c8713e 100644
--- a/example/update/simple/main.go
+++ b/example/update/simple/main.go
@@ -7,8 +7,8 @@ import (
 )
 
 func main() {
-	h := pyramid.NewHeap[int](func(a any, b any) bool {
-		return a.(int) < b.(int)
+	h := pyramid.NewHeap[int](func(a int, b int) bool {
+		return a < b
 	})
 
 	special := 675
@@ -19,8 +19,8 @@ func main() {
 		h.Push(i)
 	}
 
-	h.Update(special, 0, func(a any, b any) bool {
-		return a.(int) == b.(int)
+	h.Update(special, 0, func(a int, b int) bool {
+		return a == b
 	})
 
 	for h.Length() > 0 {
diff --git a/heap.go b/heap.go
index a52d41e..9912f50 100644
--- a/heap.go
+++ b/heap.go
@@ -31,7 +31,7 @@ func (h *Heap[T]) Length() int {
 
 // Update
 // the queue list.
-func (h *Heap[T]) Update(old any, new any, ef equalFunction) {
+func (h *Heap[T]) Update(old any, new any, ef equalFunction[T]) {
 	index := h.find(old, ef)
 	if index == -1 {
 		return
@@ -40,7 +40,7 @@ func (h *Heap[T]) Update(old any, new any, ef equalFunction) {
 	h.queue.update(h.queue.list[index], new.(T))
 }
 
-func (h *Heap[T]) find(object any, equalFunction equalFunction) int {
+func (h *Heap[T]) find(object any, equalFunction equalFunction[T]) int {
 	for index, obj := range h.queue.list {
 		if equalFunction(obj.value, object.(T)) {
 			return index
@@ -52,7 +52,7 @@ func (h *Heap[T]) find(object any, equalFunction equalFunction) int {
 
 // NewHeap
 // creates a new heap of any type.
-func NewHeap[T any](compareFunction compareFunction) Heap[T] {
+func NewHeap[T any](compareFunction compareFunction[T]) Heap[T] {
 	var pq Heap[T]
 
 	// setting the compare function
diff --git a/load-test/push-pops/main.go b/load-test/push-pops/main.go
index 6f85e95..526da3a 100644
--- a/load-test/push-pops/main.go
+++ b/load-test/push-pops/main.go
@@ -17,8 +17,8 @@ func main() {
 
 	flag.Parse()
 
-	h := pyramid.NewHeap[int](func(a any, b any) bool {
-		return a.(int) < b.(int)
+	h := pyramid.NewHeap[int](func(a int, b int) bool {
+		return a < b
 	})
 
 	fmt.Printf("testing: %d numbers\n", *flNumberOfPop+*flNumberOfPush)
diff --git a/load-test/push/main.go b/load-test/push/main.go
index 60e4419..b7dbb1d 100644
--- a/load-test/push/main.go
+++ b/load-test/push/main.go
@@ -16,8 +16,8 @@ func main() {
 
 	flag.Parse()
 
-	h := pyramid.NewHeap[int](func(a any, b any) bool {
-		return a.(int) < b.(int)
+	h := pyramid.NewHeap[int](func(a int, b int) bool {
+		return a < b
 	})
 
 	fmt.Printf("testing: %d numbers\n", *flNumberOfPush)
diff --git a/load-test/update/main.go b/load-test/update/main.go
index 37a51b8..3e11211 100644
--- a/load-test/update/main.go
+++ b/load-test/update/main.go
@@ -24,8 +24,8 @@ func main() {
 
 	var items []*Data
 
-	h := pyramid.NewHeap[*Data](func(a any, b any) bool {
-		return a.(*Data).value < b.(*Data).value
+	h := pyramid.NewHeap[*Data](func(a *Data, b *Data) bool {
+		return a.value < b.value
 	})
 
 	fmt.Printf("testing: %d numbers\n", *flNumberOfPush)
@@ -48,8 +48,8 @@ func main() {
 			value: rand.Int() % 100000,
 		}
 
-		h.Update(items[index], newItem, func(a any, b any) bool {
-			return a.(*Data).id == b.(*Data).id
+		h.Update(items[index], newItem, func(a *Data, b *Data) bool {
+			return a.id == b.id
 		})
 	}
 
diff --git a/queue.go b/queue.go
index 77ee922..af8d6f9 100644
--- a/queue.go
+++ b/queue.go
@@ -6,7 +6,7 @@ import "container/heap"
 // is a list of items.
 type Queue[T any] struct {
 	list            []*item[T]
-	compareFunction compareFunction
+	compareFunction compareFunction[T]
 }
 
 // Len
diff --git a/test/heap_test.go b/test/heap_test.go
index 52057a3..6c89aca 100644
--- a/test/heap_test.go
+++ b/test/heap_test.go
@@ -10,8 +10,8 @@ import (
 // testing heap data structure with int64 type.
 func TestHeap(t *testing.T) {
 	// creating a new heap
-	h := pyramid.NewHeap[int64](func(a any, b any) bool {
-		return a.(int64) < b.(int64)
+	h := pyramid.NewHeap[int64](func(a int64, b int64) bool {
+		return a < b
 	})
 
 	// push some data into heap
@@ -37,8 +37,8 @@ func TestValidType(t *testing.T) {
 		value int
 	}
 
-	h := pyramid.NewHeap[item](func(a any, b any) bool {
-		return a.(item).value < b.(item).value
+	h := pyramid.NewHeap[item](func(a item, b item) bool {
+		return a.value < b.value
 	})
 
 	h.Push(item{
diff --git a/type.go b/type.go
index 69b5f4a..9680967 100644
--- a/type.go
+++ b/type.go
@@ -10,8 +10,8 @@ type item[T any] struct {
 
 // compareFunction
 // is used to compare items in priority queue.
-type compareFunction func(any, any) bool
+type compareFunction[T any] func(T, T) bool
 
 // equalFunction
 // is used to update elements in priority queue.
-type equalFunction func(any, any) bool
+type equalFunction[T any] func(T, T) bool