diff --git a/Gemfile b/Gemfile
index 41af19f4a..42678719b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gem "rails", "5.1.7"
 
-gem "acts-as-taggable-on", "~> 6.0.0"
+gem "acts-as-taggable-on", "~> 6.5.0"
 gem "acts_as_votable", "~> 0.11.1"
 gem "ahoy_matey", "~> 1.6.0"
 gem "ancestry", "~> 3.0.7"
diff --git a/Gemfile.lock b/Gemfile.lock
index 5ab10e4ef..40e60868a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,8 +47,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    acts-as-taggable-on (6.0.0)
-      activerecord (~> 5.0)
+    acts-as-taggable-on (6.5.0)
+      activerecord (>= 5.0, < 6.1)
     acts_as_votable (0.11.1)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
@@ -144,7 +144,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.6)
+    concurrent-ruby (1.1.7)
     coveralls (0.8.22)
       json (>= 1.8, < 3)
       simplecov (~> 0.16.1)
@@ -605,7 +605,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  acts-as-taggable-on (~> 6.0.0)
+  acts-as-taggable-on (~> 6.5.0)
   acts_as_votable (~> 0.11.1)
   ahoy_matey (~> 1.6.0)
   ancestry (~> 3.0.7)