diff --git a/flask_discord/__init__.py b/flask_discord/__init__.py
index 1034482..de4a43d 100644
--- a/flask_discord/__init__.py
+++ b/flask_discord/__init__.py
@@ -11,4 +11,4 @@ __all__ = [
 ]
 
 
-__version__ = "0.1.03"
+__version__ = "0.1.06"
diff --git a/flask_discord/client.py b/flask_discord/client.py
index 663593b..c96e40f 100644
--- a/flask_discord/client.py
+++ b/flask_discord/client.py
@@ -62,7 +62,10 @@ class DiscordOAuth2Session(_http.DiscordOAuth2HttpClient):
 
         """
         for session_key in self.SESSION_KEYS:
-            session.pop(session_key)
+            try:
+                session.pop(session_key)
+            except KeyError:
+                pass
 
     @property
     def authorized(self):
@@ -79,7 +82,7 @@ class DiscordOAuth2Session(_http.DiscordOAuth2HttpClient):
         """
         return models.User(self.get("/users/@me"))
 
-    def fetch_connections(self) -> models.UserConnection:
+    def fetch_connections(self) -> list:
         """Requests and returns connections of current user from discord.
 
         Returns
@@ -87,7 +90,8 @@ class DiscordOAuth2Session(_http.DiscordOAuth2HttpClient):
         flask_discord.models.UserConnection
 
         """
-        return models.UserConnection(self.get("/users/@me/connections"))
+        connections_payload = self.get("/users/@me/connections")
+        return [models.UserConnection(payload) for payload in connections_payload]
 
     def fetch_guilds(self) -> list:
         """Requests and returns guilds of current user from discord.
diff --git a/flask_discord/configs.py b/flask_discord/configs.py
index 04639b6..fc0c1e2 100644
--- a/flask_discord/configs.py
+++ b/flask_discord/configs.py
@@ -15,6 +15,7 @@ DEFAULT_SCOPES = [
 
 
 IMAGE_BASE_URL = "https://cdn.discordapp.com/"
-
-USER_AVATAR_BASE_URL = IMAGE_BASE_URL + "avatars/{user_id}/{avatar_hash}.png"
+IMAGE_FORMAT = "png"
+ANIMATED_IMAGE_FORMAT = "gif"
+USER_AVATAR_BASE_URL = IMAGE_BASE_URL + "avatars/{user_id}/{avatar_hash}.{format}"
 GUILD_ICON_BASE_URL = IMAGE_BASE_URL + "icons/{guild_id}/{icon_hash}.png"
diff --git a/flask_discord/models/connections.py b/flask_discord/models/connections.py
index 17f4c6c..f6b4b40 100644
--- a/flask_discord/models/connections.py
+++ b/flask_discord/models/connections.py
@@ -54,7 +54,7 @@ class UserConnection(object):
 
     Attributes
     ----------
-    id : int
+    id : str
         ID of the connection account.
     name : str
         The username of the connection account.
@@ -80,7 +80,7 @@ class UserConnection(object):
 
     def __init__(self, payload):
         self._payload = payload
-        self.id = int(self._payload.get("id", 0))
+        self.id = self._payload["id"]
         self.name = self._payload.get("name")
         self.type = self._payload.get("type")
         self.revoked = self._payload.get("revoked")
diff --git a/flask_discord/models/user.py b/flask_discord/models/user.py
index bc061ed..46e63cc 100644
--- a/flask_discord/models/user.py
+++ b/flask_discord/models/user.py
@@ -12,8 +12,8 @@ class User(DiscordModelsBase):
         The discord ID of the user.
     username : str
         The discord username of the user.
-    discriminator : int
-        4 - digits discord tag of the user.
+    discriminator : str
+        4 length string representing discord tag of the user.
     avatar_hash : str
         Hash of users avatar.
     bot : bool
@@ -39,7 +39,7 @@ class User(DiscordModelsBase):
         self._payload = payload
         self.id = int(self._payload["id"])
         self.username = self._payload["username"]
-        self.discriminator = int(self._payload["discriminator"])
+        self.discriminator = self._payload["discriminator"]
         self.avatar_hash = self._payload.get("avatar", self.discriminator)
         self.bot = self._payload.get("bot", False)
         self.mfa_enabled = self._payload.get("mfa_enabled")
@@ -60,7 +60,8 @@ class User(DiscordModelsBase):
     @property
     def avatar_url(self):
         """A property returning direct URL to user's avatar."""
-        return configs.USER_AVATAR_BASE_URL.format(user_id=self.id, avatar_hash=self.avatar_hash)
+        image_format = configs.ANIMATED_IMAGE_FORMAT if self.is_avatar_animated else configs.IMAGE_FORMAT
+        return configs.USER_AVATAR_BASE_URL.format(user_id=self.id, avatar_hash=self.avatar_hash, format=image_format)
 
     @property
     def is_avatar_animated(self):