diff --git a/Gemfile b/Gemfile
index 1a3b3fb..e4fffea 100644
--- a/Gemfile
+++ b/Gemfile
@@ -140,7 +140,7 @@
 gem 'wkhtmltopdf-binary'
 
 # PDF generator (from HTML) gem for Ruby on Rails (https://github.com/mileszs/wicked_pdf)
-gem 'wicked_pdf'
+gem 'wicked_pdf', '~> 1.1.0'
 
 # This simple gem allows you to create MS Word docx documents from simple html documents. This makes it easy to create dynamic reports and forms that can be downloaded by your users as simple MS Word docx files. (http://github.com/karnov/htmltoword)
 gem 'htmltoword'
diff --git a/Gemfile.lock b/Gemfile.lock
index 09d17aa..be0e534 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -92,7 +92,7 @@
       archive-zip (~> 0.10)
       nokogiri (~> 1.8)
     coderay (1.1.2)
-    concurrent-ruby (1.1.3)
+    concurrent-ruby (1.1.5)
     contact_us (1.2.0)
       rails (>= 4.2.0)
     crack (0.4.3)
@@ -101,7 +101,7 @@
     daemons (1.2.6)
     database_cleaner (1.7.0)
     debug_inspector (0.0.3)
-    devise (4.5.0)
+    devise (4.6.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
       railties (>= 4.1.0, < 6.0)
@@ -246,7 +246,7 @@
       mime-types-data (~> 3.2015)
     mime-types-data (3.2018.0812)
     mini_mime (1.0.1)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     mini_racer (0.2.4)
       libv8 (>= 6.3)
     minitest (5.11.3)
@@ -257,8 +257,8 @@
     multipart-post (2.0.0)
     mysql2 (0.4.10)
     nenv (0.3.0)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.1)
+      mini_portile2 (~> 2.4.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -335,16 +335,16 @@
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (3.0.0)
-    rake (12.3.1)
+    rake (12.3.2)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
     recaptcha (4.13.0)
       json
     regexp_parser (1.3.0)
-    responders (2.4.0)
-      actionpack (>= 4.2.0, < 5.3)
-      railties (>= 4.2.0, < 5.3)
+    responders (2.4.1)
+      actionpack (>= 4.2.0, < 6.0)
+      railties (>= 4.2.0, < 6.0)
     rollbar (2.18.0)
       multi_json
     rspec (3.8.0)
@@ -549,7 +549,7 @@
   web-console
   webmock
   webpacker (~> 3.5)
-  wicked_pdf
+  wicked_pdf (~> 1.1.0)
   wkhtmltopdf-binary
   yard
   yard-tomdoc