diff --git a/network/src/commonMain/kotlin/com/wire/kalium/network/api/base/authenticated/conversation/ConversationResponse.kt b/network/src/commonMain/kotlin/com/wire/kalium/network/api/base/authenticated/conversation/ConversationResponse.kt
index bdbdecab42c..5a8e10c3e82 100644
--- a/network/src/commonMain/kotlin/com/wire/kalium/network/api/base/authenticated/conversation/ConversationResponse.kt
+++ b/network/src/commonMain/kotlin/com/wire/kalium/network/api/base/authenticated/conversation/ConversationResponse.kt
@@ -234,7 +234,7 @@ data class SubconversationResponse(
     val epochTimestamp: String?,
 
     @SerialName("cipher_suite")
-    val mlsCipherSuiteTag: Int,
+    val mlsCipherSuiteTag: Int?,
 
     @SerialName("members")
     val members: List<SubconversationMember>,