diff --git a/server/auth/google.js b/server/auth/google.js
index 2fbb887ac..80bc1b16f 100644
--- a/server/auth/google.js
+++ b/server/auth/google.js
@@ -89,12 +89,15 @@ router.get('google.callback', auth({ required: false }), async ctx => {
             serviceId: profile.data.id,
           },
           {
-            service: '',
+            service: { [Op.eq]: null },
+            email: profile.data.email,
           },
         ],
         teamId: team.id,
       },
       defaults: {
+        service: 'google',
+        serviceId: profile.data.id,
         name: profile.data.name,
         email: profile.data.email,
         isAdmin: isFirstUser,
@@ -102,6 +105,25 @@ router.get('google.callback', auth({ required: false }), async ctx => {
       },
     });
 
+    // update the user with fresh details if they just accepted an invite
+    if (!user.serviceId || !user.service) {
+      await user.update({
+        service: 'google',
+        serviceId: profile.data.id,
+        avatarUrl: profile.data.picture,
+      });
+    }
+
+    // update email address if it's changed in Google
+    if (!isFirstSignin && profile.data.email !== user.email) {
+      await user.update({ email: profile.data.email });
+    }
+
+    if (isFirstUser) {
+      await team.provisionFirstCollection(user.id);
+      await team.provisionSubdomain(hostname);
+    }
+
     if (isFirstSignin) {
       await Event.create({
         name: 'users.create',
@@ -116,16 +138,6 @@ router.get('google.callback', auth({ required: false }), async ctx => {
       });
     }
 
-    // update email address if it's changed in Google
-    if (!isFirstSignin && profile.data.email !== user.email) {
-      await user.update({ email: profile.data.email });
-    }
-
-    if (isFirstUser) {
-      await team.provisionFirstCollection(user.id);
-      await team.provisionSubdomain(hostname);
-    }
-
     // set cookies on response and redirect to team subdomain
     ctx.signIn(user, team, 'google', isFirstSignin);
   } catch (err) {
diff --git a/server/auth/slack.js b/server/auth/slack.js
index 571f09de5..9f46857f6 100644
--- a/server/auth/slack.js
+++ b/server/auth/slack.js
@@ -68,12 +68,15 @@ router.get('slack.callback', auth({ required: false }), async ctx => {
             serviceId: data.user.id,
           },
           {
-            service: '',
+            service: { [Op.eq]: null },
+            email: data.user.email,
           },
         ],
         teamId: team.id,
       },
       defaults: {
+        service: 'slack',
+        serviceId: data.user.id,
         name: data.user.name,
         email: data.user.email,
         isAdmin: isFirstUser,
@@ -81,6 +84,20 @@ router.get('slack.callback', auth({ required: false }), async ctx => {
       },
     });
 
+    // update the user with fresh details if they just accepted an invite
+    if (!user.serviceId || !user.service) {
+      await user.update({
+        service: 'slack',
+        serviceId: data.user.id,
+        avatarUrl: data.user.image_192,
+      });
+    }
+
+    // update email address if it's changed in Slack
+    if (!isFirstSignin && data.user.email !== user.email) {
+      await user.update({ email: data.user.email });
+    }
+
     if (isFirstUser) {
       await team.provisionFirstCollection(user.id);
       await team.provisionSubdomain(data.team.domain);
@@ -100,11 +117,6 @@ router.get('slack.callback', auth({ required: false }), async ctx => {
       });
     }
 
-    // update email address if it's changed in Slack
-    if (!isFirstSignin && data.user.email !== user.email) {
-      await user.update({ email: data.user.email });
-    }
-
     // set cookies on response and redirect to team subdomain
     ctx.signIn(user, team, 'slack', isFirstSignin);
   } catch (err) {