diff --git a/max.go b/max.go
index be74b3c..31957d0 100644
--- a/max.go
+++ b/max.go
@@ -3,9 +3,13 @@ package underscore
 import "cmp"
 
 // Max returns the maximum value in the slice.
+// Panics if values is empty.
 // This function can currently only compare numbers reliably.
 // This function uses operator <.
 func Max[T cmp.Ordered](values []T) T {
+	if len(values) == 0 {
+		panic("underscore.Max: empty slice")
+	}
 	max := values[0]
 	for _, v := range values {
 		if v > max {
diff --git a/max_test.go b/max_test.go
index 5fed20a..1c05cd1 100644
--- a/max_test.go
+++ b/max_test.go
@@ -13,3 +13,9 @@ func TestMax(t *testing.T) {
 	want := 9
 	assert.Equal(t, want, u.Max(nums))
 }
+
+func TestMaxEmpty(t *testing.T) {
+	assert.Panics(t, func() {
+		u.Max([]int{})
+	})
+}
diff --git a/min.go b/min.go
index 35c42a0..1e192c6 100644
--- a/min.go
+++ b/min.go
@@ -3,9 +3,13 @@ package underscore
 import "cmp"
 
 // Min returns the minimum value in the slice.
+// Panics if values is empty.
 // This function can currently only compare numbers reliably.
 // This function uses operator <.
 func Min[T cmp.Ordered](values []T) T {
+	if len(values) == 0 {
+		panic("underscore.Min: empty slice")
+	}
 	min := values[0]
 	for _, v := range values {
 		if v < min {
diff --git a/min_test.go b/min_test.go
index 2b4f6cc..8049bb4 100644
--- a/min_test.go
+++ b/min_test.go
@@ -13,3 +13,9 @@ func TestMin(t *testing.T) {
 	want := 1
 	assert.Equal(t, want, u.Min(nums))
 }
+
+func TestMinEmpty(t *testing.T) {
+	assert.Panics(t, func() {
+		u.Min([]int{})
+	})
+}