diff --git a/.golangci.yml b/.golangci.yml
index 2f6c810..ff70ada 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -37,6 +37,7 @@ linters:
     - tparallel
     - paralleltest
     - predeclared
+    - modernize
 
   # disable noisy/controversial ones which you might enable later
   disable:
diff --git a/it/map.go b/it/map.go
index 166af55..9badaa9 100644
--- a/it/map.go
+++ b/it/map.go
@@ -143,7 +143,7 @@ func Assign[K comparable, V any, Map ~map[K]V](maps ...iter.Seq[Map]) Map {
 	for i := range maps {
 		for item := range maps[i] {
 			for k, v := range item {
-				out[k] = v
+				out[k] = v //nolint:modernize
 			}
 		}
 	}
diff --git a/it/seq_test.go b/it/seq_test.go
index 0a3281c..5b19e8d 100644
--- a/it/seq_test.go
+++ b/it/seq_test.go
@@ -730,7 +730,7 @@ func TestInterleave(t *testing.T) {
 		},
 	}
 	for _, tc := range testCases {
-		tc := tc
+		tc := tc //nolint:modernize
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
 			assert.Equal(t, tc.want, slices.Collect(Interleave(tc.in...)))
@@ -852,7 +852,7 @@ func TestAssociate(t *testing.T) {
 		},
 	}
 	for i, tc := range testCases {
-		tc := tc
+		tc := tc //nolint:modernize
 		t.Run(fmt.Sprintf("test_%d", i), func(t *testing.T) {
 			t.Parallel()
 			assert.Equal(t, tc.want, Associate(slices.Values(tc.in), transform))
@@ -884,7 +884,7 @@ func TestAssociateI(t *testing.T) {
 		},
 	}
 	for i, tc := range testCases {
-		tc := tc
+		tc := tc //nolint:modernize
 		t.Run(fmt.Sprintf("test_%d", i), func(t *testing.T) {
 			t.Parallel()
 			assert.Equal(t, tc.want, AssociateI(slices.Values(tc.in), transform))
@@ -920,7 +920,7 @@ func TestSeqToMap(t *testing.T) {
 		},
 	}
 	for i, tc := range testCases {
-		tc := tc
+		tc := tc //nolint:modernize
 		t.Run(fmt.Sprintf("test_%d", i), func(t *testing.T) {
 			t.Parallel()
 			assert.Equal(t, tc.want, SeqToMap(slices.Values(tc.in), transform))
@@ -952,7 +952,7 @@ func TestSeqToMapI(t *testing.T) {
 		},
 	}
 	for i, tc := range testCases {
-		tc := tc
+		tc := tc //nolint:modernize
 		t.Run(fmt.Sprintf("test_%d", i), func(t *testing.T) {
 			t.Parallel()
 			assert.Equal(t, tc.want, SeqToMapI(slices.Values(tc.in), transform))
@@ -988,7 +988,7 @@ func TestFilterSeqToMap(t *testing.T) {
 		},
 	}
 	for i, tc := range testCases {
-		tc := tc
+		tc := tc //nolint:modernize
 		t.Run(fmt.Sprintf("test_%d", i), func(t *testing.T) {
 			t.Parallel()
 			assert.Equal(t, tc.want, FilterSeqToMap(slices.Values(tc.in), transform))
@@ -1020,7 +1020,7 @@ func TestFilterSeqToMapI(t *testing.T) {
 		},
 	}
 	for i, tc := range testCases {
-		tc := tc
+		tc := tc //nolint:modernize
 		t.Run(fmt.Sprintf("test_%d", i), func(t *testing.T) {
 			t.Parallel()
 			assert.Equal(t, tc.want, FilterSeqToMapI(slices.Values(tc.in), transform))
diff --git a/math_test.go b/math_test.go
index 77c3bec..6a420c7 100644
--- a/math_test.go
+++ b/math_test.go
@@ -241,8 +241,8 @@ func TestProductByErr(t *testing.T) {
 	// Test normal operation (no error) - table driven
 	tests := []struct {
 		name     string
-		input    interface{}
-		expected interface{}
+		input    any
+		expected any
 	}{
 		{
 			name:     "float32 slice",
@@ -403,8 +403,8 @@ func TestMeanByErr(t *testing.T) {
 	// Test normal operation (no error) - table driven
 	tests := []struct {
 		name     string
-		input    interface{}
-		expected interface{}
+		input    any
+		expected any
 	}{
 		{
 			name:     "float32 slice",