diff --git a/Gemfile.lock b/Gemfile.lock
index 025ca01a7..64e78bd58 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -124,11 +124,12 @@ GEM
     daemons (1.2.3)
     debug_inspector (0.0.2)
     deep_merge (1.0.1)
-    devise (4.2.0)
+    devise (3.5.6)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (>= 4.1.0, < 5.1)
+      railties (>= 3.2.6, < 5)
       responders
+      thread_safe (~> 0.1)
       warden (~> 1.2.3)
     devise-bootstrap-views (0.0.8)
     devise-i18n (1.0.1)
@@ -366,7 +367,7 @@ GEM
       json
     regexp_parser (0.3.3)
     request_store (1.3.1)
-    responders (2.2.0)
+    responders (2.1.2)
       railties (>= 4.2.0, < 5.1)
     rest-client (1.8.0)
       http-cookie (>= 1.0.2, < 2.0)