diff --git a/gradle.properties b/gradle.properties
index b784920..926924e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -4,7 +4,7 @@ kotlin.code.style=official
 specifyKotlinAsDependency=false
 
 projectGroup=ru.dbotthepony.kommons
-projectVersion=2.13.0
+projectVersion=2.13.1
 
 guavaDepVersion=33.0.0
 gsonDepVersion=2.8.9
diff --git a/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2d.kt b/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2d.kt
index 8c56853..9a0e8a8 100644
--- a/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2d.kt
+++ b/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2d.kt
@@ -116,7 +116,14 @@ data class Vector2d(
 	}
 
 	override fun hashCode(): Int {
-		return x.hashCode().rotateLeft(16) xor y.hashCode()
+		var x = x.hashCode().rotateLeft(16) xor y.hashCode()
+		// avalanche bits using murmur3 hash
+		x = x xor (x ushr 16)
+		x *= -0x7a143595
+		x = x xor (x ushr 13)
+		x *= -0x3d4d51cb
+		x = x xor (x ushr 16)
+		return x
 	}
 
 	override fun toString(): String {
diff --git a/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2f.kt b/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2f.kt
index 36d3a32..57dccbc 100644
--- a/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2f.kt
+++ b/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2f.kt
@@ -116,7 +116,14 @@ data class Vector2f(
 	}
 
 	override fun hashCode(): Int {
-		return x.hashCode().rotateLeft(16) xor y.hashCode()
+		var x = x.hashCode().rotateLeft(16) xor y.hashCode()
+		// avalanche bits using murmur3 hash
+		x = x xor (x ushr 16)
+		x *= -0x7a143595
+		x = x xor (x ushr 13)
+		x *= -0x3d4d51cb
+		x = x xor (x ushr 16)
+		return x
 	}
 
 	override fun toString(): String {
diff --git a/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2i.kt b/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2i.kt
index faa0559..ae00bb6 100644
--- a/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2i.kt
+++ b/linear-algebra/src/main/kotlin/ru/dbotthepony/kommons/vector/Vector2i.kt
@@ -93,7 +93,14 @@ data class Vector2i(
 	}
 
 	override fun hashCode(): Int {
-		return x.rotateLeft(16) xor y
+		var x = x.rotateLeft(16) xor y
+		// avalanche bits using murmur3 hash
+		x = x xor (x ushr 16)
+		x *= -0x7a143595
+		x = x xor (x ushr 13)
+		x *= -0x3d4d51cb
+		x = x xor (x ushr 16)
+		return x
 	}
 
 	override fun toString(): String {