diff --git a/src/main/java/de/bixilon/minosoft/util/interpolate/InterpolateFunction.kt b/src/main/java/de/bixilon/minosoft/util/interpolate/InterpolateFunction.kt
index b051b022e..6c30fd480 100644
--- a/src/main/java/de/bixilon/minosoft/util/interpolate/InterpolateFunction.kt
+++ b/src/main/java/de/bixilon/minosoft/util/interpolate/InterpolateFunction.kt
@@ -13,6 +13,7 @@
 
 package de.bixilon.minosoft.util.interpolate
 
+@Deprecated("Kutil 1.24")
 fun interface InterpolateFunction<T> {
 
     fun interpolate(delta: Float, value0: T, value1: T): T
diff --git a/src/main/java/de/bixilon/minosoft/util/interpolate/Interpolator.kt b/src/main/java/de/bixilon/minosoft/util/interpolate/Interpolator.kt
index 7a3a019fc..451204876 100644
--- a/src/main/java/de/bixilon/minosoft/util/interpolate/Interpolator.kt
+++ b/src/main/java/de/bixilon/minosoft/util/interpolate/Interpolator.kt
@@ -13,6 +13,7 @@
 
 package de.bixilon.minosoft.util.interpolate
 
+@Deprecated("Kutil 1.24")
 class Interpolator<T>(
     var initial: T,
     var function: InterpolateFunction<T>,