diff --git a/Gemfile b/Gemfile
index ba00517dd0165809b99523b919c9fb05fef0cf35..2c742af4d175ff2ce69161f028efca0dddbc1859 100644
--- a/Gemfile
+++ b/Gemfile
@@ -177,7 +177,7 @@ gem "acts-as-taggable-on", "5.0.0"
 
 # URIs and HTTP
 
-gem "addressable",        "2.5.1", require: "addressable/uri"
+gem "addressable",        "2.5.2", require: "addressable/uri"
 gem "faraday",            "0.11.0" # also update User-Agent in OpenID specs
 gem "faraday_middleware", "0.11.0.1"
 gem "faraday-cookie_jar", "0.0.6"
diff --git a/Gemfile.lock b/Gemfile.lock
index 195c18b18419e6603b77a220b4d649754440cc40..305c1368e0dd9a0dbe5eebaa7c66538950221793 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -50,8 +50,8 @@ GEM
       activemodel (>= 3.0.0)
       activesupport (>= 3.0.0)
       rack (>= 1.1.0)
-    addressable (2.5.1)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.5.2)
+      public_suffix (>= 2.0.2, < 4.0)
     arel (8.0.0)
     asset_sync (2.2.0)
       activemodel (>= 4.1.0)
@@ -471,7 +471,7 @@ GEM
     pry-byebug (3.4.2)
       byebug (~> 9.0)
       pry (~> 0.10)
-    public_suffix (2.0.5)
+    public_suffix (3.0.0)
     rack (2.0.3)
     rack-cors (1.0.1)
     rack-google-analytics (1.2.0)
@@ -767,7 +767,7 @@ DEPENDENCIES
   activerecord-import (= 0.20.1)
   acts-as-taggable-on (= 5.0.0)
   acts_as_api (= 1.0.1)
-  addressable (= 2.5.1)
+  addressable (= 2.5.2)
   asset_sync (= 2.2.0)
   autoprefixer-rails (= 7.1.2.4)
   bootstrap-sass (= 3.3.7)