diff --git a/gradle.properties b/gradle.properties
index 4d0e3d6..1d57092 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -4,7 +4,7 @@ kotlin.code.style=official
 specifyKotlinAsDependency=false
 
 projectGroup=ru.dbotthepony.kommons
-projectVersion=2.12.0
+projectVersion=2.12.1
 
 guavaDepVersion=33.0.0
 gsonDepVersion=2.8.9
diff --git a/src/main/kotlin/ru/dbotthepony/kommons/util/Either.kt b/src/main/kotlin/ru/dbotthepony/kommons/util/Either.kt
index 514b29f..5753d3d 100644
--- a/src/main/kotlin/ru/dbotthepony/kommons/util/Either.kt
+++ b/src/main/kotlin/ru/dbotthepony/kommons/util/Either.kt
@@ -63,6 +63,10 @@ class Either<L, R> private constructor(val left: KOptional<L>, val right: KOptio
 		}
 	}
 
+	fun swap(): Either<R, L> {
+		return Either(right, left)
+	}
+
 	companion object {
 		@JvmStatic
 		fun <L, R> left(value: L): Either<L, R> {