diff --git a/Cargo.toml b/Cargo.toml
index f869b985..39d92cc9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,7 +15,6 @@ edition = "2018"
 [dependencies]
 ruma-identifiers = "0.13.0"
 ruma-events-macros = { path = "../ruma-events-macros" }
-ruma-signatures = "0.4.2"
 serde_json = "1.0.39"
 
 [dependencies.js_int]
diff --git a/src/room.rs b/src/room.rs
index 825f72ba..5b4e35a4 100644
--- a/src/room.rs
+++ b/src/room.rs
@@ -16,7 +16,7 @@ pub mod encryption;
 pub mod guest_access;
 pub mod history_visibility;
 pub mod join_rules;
-// pub mod member;
+pub mod member;
 pub mod message;
 pub mod name;
 pub mod pinned_events;
diff --git a/src/room/member.rs b/src/room/member.rs
index c83f6575..5fc83b31 100644
--- a/src/room/member.rs
+++ b/src/room/member.rs
@@ -1,9 +1,10 @@
 //! Types for the *m.room.member* event.
 
+use std::collections::HashMap;
+
 use js_int::UInt;
 use ruma_events_macros::ruma_event;
 use ruma_identifiers::UserId;
-use ruma_signatures::Signatures;
 use serde::{Deserialize, Serialize};
 
 ruma_event! {
@@ -22,8 +23,8 @@ ruma_event! {
     /// present, this contains an array of `StrippedState` events. These events provide information
     /// on a subset of state events such as the room name. Note that ruma-events treats unsigned
     /// data on events as arbitrary JSON values, and the ruma-events types for this event don't
-    /// provide direct access to these `invite_room_state`. If you need this data, you must extract
-    /// and convert it from a `serde_json::Value` yourself.
+    /// provide direct access to `invite_room_state`. If you need this data, you must extract and
+    /// convert it from a `serde_json::Value` yourself.
     ///
     /// The user for which a membership applies is represented by the `state_key`. Under some
     /// conditions, the `sender` and `state_key` may not match - this may be interpreted as the
@@ -101,7 +102,7 @@ impl_enum! {
 }
 
 /// Information about a third party invitation.
-#[derive(Clone, Debug, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, PartialEq, Serialize)]
 pub struct ThirdPartyInvite {
     /// A name which can be displayed to represent the user instead of their third party
     /// identifier.
@@ -114,7 +115,7 @@ pub struct ThirdPartyInvite {
 
 /// A block of content which has been signed, which servers can use to verify a third party
 /// invitation.
-#[derive(Clone, Debug, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, PartialEq, Serialize)]
 pub struct SignedContent {
     /// The invited Matrix user ID.
     ///
@@ -123,7 +124,7 @@ pub struct SignedContent {
 
     /// A single signature from the verifying server, in the format specified by the Signing Events
     /// section of the server-server API.
-    pub signatures: Signatures,
+    pub signatures: HashMap<String, HashMap<String, String>>,
 
     /// The token property of the containing third_party_invite object.
     pub token: String,