diff --git a/Gemfile.lock b/Gemfile.lock
index e0047af..67a4d9c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -50,7 +50,7 @@ GEM
     builder (3.2.3)
     byebug (10.0.2)
     coderay (1.1.2)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.3)
     crass (1.0.4)
     devise (4.5.0)
       bcrypt (~> 3.0)
@@ -90,7 +90,7 @@ GEM
       mini_mime (>= 0.1.1)
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
-    method_source (0.9.0)
+    method_source (0.9.2)
     mimemagic (0.3.2)
     mini_mime (1.0.1)
     mini_portile2 (2.3.0)
@@ -105,7 +105,7 @@ GEM
       ast (~> 2.4.0)
     powerpack (0.1.2)
     puma (3.12.0)
-    rack (2.0.5)
+    rack (2.0.6)
     rack-cors (1.0.2)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -197,7 +197,7 @@ GEM
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
     sqlite3 (1.3.13)
-    thor (0.20.0)
+    thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.8)
     tzinfo (1.2.5)