diff --git a/google/genai/_gaos/types/interactions/audiocontent.py b/google/genai/_gaos/types/interactions/audiocontent.py
index 7372325d5..b8f4af2fa 100644
--- a/google/genai/_gaos/types/interactions/audiocontent.py
+++ b/google/genai/_gaos/types/interactions/audiocontent.py
@@ -46,6 +46,7 @@
         "audio/opus",
         "audio/alaw",
         "audio/mulaw",
+        "audio/webm",
     ],
     UnrecognizedStr,
 ]
diff --git a/google/genai/_gaos/types/interactions/audiodelta.py b/google/genai/_gaos/types/interactions/audiodelta.py
index 910e99cec..dd0b9c363 100644
--- a/google/genai/_gaos/types/interactions/audiodelta.py
+++ b/google/genai/_gaos/types/interactions/audiodelta.py
@@ -40,6 +40,7 @@
         "audio/opus",
         "audio/alaw",
         "audio/mulaw",
+        "audio/webm",
     ],
     UnrecognizedStr,
 ]