diff --git a/Gemfile b/Gemfile
index 565a14126..a0e5daaad 100644
--- a/Gemfile
+++ b/Gemfile
@@ -20,7 +20,7 @@ gem 'paper_trail', '~> 12.0'
 gem 'pg',                        '1.2.2'
 # 1.8 is for Rails < 5.0
 gem 'ransack', '~> 2.3'
-gem 'truemail', '~> 2.2' # validates email by regexp, mail server existence and address existence
+gem 'truemail', '~> 2.3' # validates email by regexp, mail server existence and address existence
 gem 'validates_email_format_of', '1.6.3' # validates email against RFC 2822 and RFC 3696
 
 # 0.7.3 is the latest for Rails 4.2, however, it is absent on Rubygems server
@@ -43,7 +43,7 @@ gem 'devise', '~> 4.7'
 gem 'data_migrate', '~> 6.1'
 gem 'dnsruby', '~> 1.61'
 gem 'isikukood' # for EE-id validation
-gem 'simpleidn', '0.1.1' # For punycode
+gem 'simpleidn', '0.2.1' # For punycode
 gem 'money-rails'
 gem 'whenever', '1.0.0', require: false
 
diff --git a/Gemfile.lock b/Gemfile.lock
index b1f02ee25..9318f3933 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -432,7 +432,7 @@ GEM
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
-    simpleidn (0.1.1)
+    simpleidn (0.2.1)
       unf (~> 0.1.4)
     sinatra (2.1.0)
       mustermann (~> 1.0)
@@ -456,8 +456,8 @@ GEM
     thor (1.1.0)
     thread_safe (0.3.6)
     tilt (2.0.10)
-    truemail (2.2.3)
-      simpleidn (~> 0.1.1)
+    truemail (2.3.4)
+      simpleidn (~> 0.2.1)
     tzinfo (1.2.9)
       thread_safe (~> 0.1)
     uglifier (4.2.0)
@@ -562,8 +562,8 @@ DEPENDENCIES
   selectize-rails (= 0.12.1)
   sidekiq
   simplecov (= 0.17.1)
-  simpleidn (= 0.1.1)
-  truemail (~> 2.2)
+  simpleidn (= 0.2.1)
+  truemail (~> 2.3)
   uglifier
   validates_email_format_of (= 1.6.3)
   webdrivers