diff --git a/colorm.go b/colorm.go
index 0fd69de0f..ed30b2e3d 100644
--- a/colorm.go
+++ b/colorm.go
@@ -15,7 +15,6 @@
 package ebiten
 
 import (
-	"fmt"
 	"image/color"
 
 	"github.com/hajimehoshi/ebiten/v2/internal/affine"
@@ -159,18 +158,3 @@ func (c *ColorM) IsInvertible() bool {
 func (c *ColorM) Invert() {
 	c.impl = c.affineColorM().Invert()
 }
-
-// ReadElements reads the body part and the translation part to the given float32 slices.
-//
-// len(body) must be 16 and len(translation) must be 4. Otherwise, ReadElements panics.
-//
-// Deprecated: as of v2.5. Use the colorm package instead.
-func (c *ColorM) ReadElements(body []float32, translation []float32) {
-	if len(body) != 16 {
-		panic(fmt.Sprintf("ebiten: len(body) must be 16 but %d", len(body)))
-	}
-	if len(translation) != 4 {
-		panic(fmt.Sprintf("ebiten: len(translation) must be 4 but %d", len(translation)))
-	}
-	c.affineColorM().Elements(body, translation)
-}