diff --git a/api/openapi.yaml b/api/openapi.yaml
index d6343fe..7ee5ebc 100644
--- a/api/openapi.yaml
+++ b/api/openapi.yaml
@@ -15962,6 +15962,7 @@ components:
           - vi
           - zh
           example: fr
+          nullable: true
           type: string
         transcript:
           description: "Use this parameter to enable transcription. \n\n- When `true`,\
@@ -16117,6 +16118,7 @@ components:
           - vi
           - zh
           example: fr
+          nullable: true
           type: string
         transcript:
           description: "Use this parameter to enable transcription. \n\n- When `true`,\
diff --git a/src/main/java/video/api/client/api/models/VideoCreationPayload.java b/src/main/java/video/api/client/api/models/VideoCreationPayload.java
index 835b60f..b19be81 100644
--- a/src/main/java/video/api/client/api/models/VideoCreationPayload.java
+++ b/src/main/java/video/api/client/api/models/VideoCreationPayload.java
@@ -176,7 +176,7 @@ public static LanguageEnum fromValue(String value) {
                     return b;
                 }
             }
-            throw new IllegalArgumentException("Unexpected value '" + value + "'");
+            return null;
         }
 
         public static class Adapter extends TypeAdapter<LanguageEnum> {
diff --git a/src/main/java/video/api/client/api/models/VideoUpdatePayload.java b/src/main/java/video/api/client/api/models/VideoUpdatePayload.java
index 347995e..ced93f8 100644
--- a/src/main/java/video/api/client/api/models/VideoUpdatePayload.java
+++ b/src/main/java/video/api/client/api/models/VideoUpdatePayload.java
@@ -162,7 +162,7 @@ public static LanguageEnum fromValue(String value) {
                     return b;
                 }
             }
-            throw new IllegalArgumentException("Unexpected value '" + value + "'");
+            return null;
         }
 
         public static class Adapter extends TypeAdapter<LanguageEnum> {