diff --git a/src/Internal/Api/JoinedMembers/Main.elm b/src/Internal/Api/JoinedMembers/Main.elm
index 69e19fd..d4ea491 100644
--- a/src/Internal/Api/JoinedMembers/Main.elm
+++ b/src/Internal/Api/JoinedMembers/Main.elm
@@ -32,6 +32,8 @@ joinedMembers 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 36b8098..bc21142 100644
--- a/src/Internal/Api/README.md
+++ b/src/Internal/Api/README.md
@@ -64,8 +64,8 @@ Note that **under development** doesn't always mean that it _will be_ supported.
 
 | **Spec version** |   | Event | Joined members | Event at timestamp |
 | ---------------- | - | ----- | -------------- | ------------------ |
-| v1.8   || ✔️ | ⚡ | ⚡ |
-| v1.7   || ✔️ | ⚡ | ⚡ |
+| v1.8   || ✔️ | ✔️ | ⚡ |
+| v1.7   || ✔️ | ✔️ | ⚡ |
 | v1.6   || ✔️ | ✔️ | ⚠️ |
 | v1.5   || ✔️ | ✔️ | ⛔ |
 | v1.4   || ✔️ | ✔️ | ⛔ |