diff --git a/src/Internal/Api/JoinRoomById/Main.elm b/src/Internal/Api/JoinRoomById/Main.elm
index cb415bc..3cc5995 100644
--- a/src/Internal/Api/JoinRoomById/Main.elm
+++ b/src/Internal/Api/JoinRoomById/Main.elm
@@ -32,6 +32,8 @@ joinRoomById context input =
         |> VC.sameForVersion "v1.4"
         |> VC.sameForVersion "v1.5"
         |> VC.sameForVersion "v1.6"
+        |> VC.sameForVersion "v1.7"
+        |> VC.sameForVersion "v1.8"
         |> VC.mostRecentFromVersionList (Context.getVersions context)
         |> Maybe.withDefault (always <| always <| Task.fail X.UnsupportedSpecVersion)
         |> (|>) input
diff --git a/src/Internal/Api/README.md b/src/Internal/Api/README.md
index bc21142..b6a2b60 100644
--- a/src/Internal/Api/README.md
+++ b/src/Internal/Api/README.md
@@ -42,8 +42,8 @@ Note that **under development** doesn't always mean that it _will be_ supported.
 
 | **Spec version** |   | Inviting | Joining room id | Leaving room | Kick user | Ban user |
 | ---------------- | - | -------- | --------------- | ------------ | --------- | -------- |
-| v1.8   || ✔️ | ⚡ | ⚡ | ⚡ | ✔️ |
-| v1.7   || ✔️ | ⚡ | ⚡ | ⚡ | ✔️ |
+| v1.8   || ✔️ | ✔️ | ⚡ | ⚡ | ✔️ |
+| v1.7   || ✔️ | ✔️ | ⚡ | ⚡ | ✔️ |
 | v1.6   || ✔️ | ✔️ | ✔️ | ⚡ | ✔️ |
 | v1.5   || ✔️ | ✔️ | ✔️ | ⚡ | ✔️ |
 | v1.4   || ✔️ | ✔️ | ✔️ | ⚡ | ✔️ |