diff --git a/src/main/java/io/github/theangrydev/businessflows/Mapping.java b/src/main/java/io/github/theangrydev/businessflows/Mapping.java
index e689127..abb857b 100644
--- a/src/main/java/io/github/theangrydev/businessflows/Mapping.java
+++ b/src/main/java/io/github/theangrydev/businessflows/Mapping.java
@@ -48,7 +48,7 @@ public interface Mapping<Old, New> {
      * @return The identity mapping
      */
     @ApiFeature(since = VERSION_6_0_0, stability = STABLE)
-    static <Old> Mapping<Old, Old> identity() {
+    static <Old extends New, New> Mapping<Old, New> identity() {
         return old -> old;
     }
-}
+}
\ No newline at end of file
diff --git a/src/test/java/api/regression/PublicApiTest.java b/src/test/java/api/regression/PublicApiTest.java
index 30d0b81..3718f9c 100644
--- a/src/test/java/api/regression/PublicApiTest.java
+++ b/src/test/java/api/regression/PublicApiTest.java
@@ -468,7 +468,7 @@ private static boolean notATestClass(Class<?> aClass) {
             "public abstract New io.github.theangrydev.businessflows.Mapping.map(Old) throws java.lang.Exception\n" +
             "\n" +
             "[@io.github.theangrydev.businessflows.ApiFeature(comments=, since=6.0.0, stability=STABLE)]\n" +
-            "public static <Old> io.github.theangrydev.businessflows.Mapping<Old, Old> io.github.theangrydev.businessflows.Mapping.identity()\n" +
+            "public static <Old,New> io.github.theangrydev.businessflows.Mapping<Old, New> io.github.theangrydev.businessflows.Mapping.identity()\n" +
             "\n" +
             "Annotations:\n" +
             "[@java.lang.FunctionalInterface(), @io.github.theangrydev.businessflows.ApiFeature(comments=, since=1.0.0, stability=STABLE)]\n" +