diff --git a/Gemfile.lock b/Gemfile.lock
index 6c6c012ae..dfe962fa8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -123,7 +123,7 @@ GEM
     coercible (1.0.0)
       descendants_tracker (~> 0.0.1)
     concurrent-ruby (1.2.2)
-    connection_pool (2.2.5)
+    connection_pool (2.4.1)
     coveralls_reborn (0.18.0)
       simplecov (>= 0.18.1, < 0.20.0)
       term-ansicolor (~> 1.6)
@@ -340,7 +340,7 @@ GEM
       activesupport (>= 3.0.0)
     raabro (1.4.0)
     racc (1.6.2)
-    rack (2.2.6.4)
+    rack (2.2.8)
     rack-oauth2 (1.21.3)
       activesupport
       attr_required
@@ -389,7 +389,9 @@ GEM
     recurrence (1.3.0)
       activesupport
       i18n
-    redis (4.6.0)
+    redis (4.8.1)
+    redis-client (0.17.0)
+      connection_pool
     redis-session-store (0.11.4)
       actionpack (>= 3, < 8)
       redis (>= 3, < 5)
@@ -446,10 +448,11 @@ GEM
       rack-proxy (>= 0.6.1)
       railties (>= 5.2)
       semantic_range (>= 2.3.0)
-    sidekiq (6.4.2)
-      connection_pool (>= 2.2.2)
-      rack (~> 2.0)
-      redis (>= 4.2.0)
+    sidekiq (7.1.3)
+      concurrent-ruby (< 2)
+      connection_pool (>= 2.3.0)
+      rack (>= 2.2.4)
+      redis-client (>= 0.14.0)
     sidekiq-scheduler (4.0.0)
       redis (>= 4.2.0)
       rufus-scheduler (~> 3.2)