diff --git a/contains.go b/contains.go
index e4e49e6..55cd559 100644
--- a/contains.go
+++ b/contains.go
@@ -1,7 +1,9 @@
 package underscore
 
+import "constraints"
+
 // Contains returns true if the value is present in the slice
-func Contains[T numbers](values []T, value T) bool {
+func Contains[T constraints.Ordered](values []T, value T) bool {
 	for _, v := range values {
 		if v == value {
 			return true
diff --git a/max.go b/max.go
index 440cbbe..b1e92ac 100644
--- a/max.go
+++ b/max.go
@@ -1,9 +1,11 @@
 package underscore
 
+import "constraints"
+
 // Max returns the maximum value in the slice.
 // This function can currently only compare numbers reliably.
 // This function uses operator <.
-func Max[T numbers](values []T) T {
+func Max[T constraints.Ordered](values []T) T {
 	max := values[0]
 	for _, v := range values {
 		if v > max {
diff --git a/min.go b/min.go
index a2883ea..ce518fa 100644
--- a/min.go
+++ b/min.go
@@ -1,9 +1,11 @@
 package underscore
 
+import "constraints"
+
 // Min returns the minimum value in the slice.
 // This function can currently only compare numbers reliably.
 // This function uses operator <.
-func Min[T numbers](values []T) T {
+func Min[T constraints.Ordered](values []T) T {
 	min := values[0]
 	for _, v := range values {
 		if v < min {
diff --git a/types.go b/types.go
deleted file mode 100644
index 50c6345..0000000
--- a/types.go
+++ /dev/null
@@ -1,5 +0,0 @@
-package underscore
-
-type numbers interface {
-	int | int8 | int16 | int32 | int64 | uint | uint8 | uint16 | uint32 | uint64 | float32 | float64
-}