diff --git a/Gemfile b/Gemfile
index e31a7d03d..4bc5e20c0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -34,7 +34,7 @@ gem 'net-ldap', '~> 0.16.0'
 # attachments
 
 # for exporting multiple files
-gem 'rubyzip', '~> 1.3.0'
+gem 'rubyzip', '~> 2.0.0'
 
 # soft deletion
 gem 'nilify_blanks', '~> 1.2.1'
@@ -77,7 +77,7 @@ group :development, :test do
   gem 'shoulda-matchers', '~> 3.1.3'
   gem 'capybara', '~> 3.9.0'
   gem 'capybara-selenium', '~> 0.0.6'
-  gem 'selenium-webdriver', '~> 3.14.1'
+  gem 'selenium-webdriver', '~> 3.142.6'
   gem "puma", "~> 4.1"
   gem 'spring', '~> 2.0.2'
   gem 'spring-commands-rspec', '~> 1.0.4'
diff --git a/Gemfile.lock b/Gemfile.lock
index f9ea3336e..7d4d65d7a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -124,8 +124,7 @@ GEM
     capybara-selenium (0.0.6)
       capybara
       selenium-webdriver
-    childprocess (0.9.0)
-      ffi (~> 1.0, >= 1.0.11)
+    childprocess (3.0.0)
     chronic (0.10.2)
     cocoon (1.2.10)
     codeclimate-test-reporter (1.0.8)
@@ -171,7 +170,7 @@ GEM
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
     ffaker (2.6.0)
-    ffi (1.11.1)
+    ffi (1.11.3)
     font-awesome-rails (4.7.0.5)
       railties (>= 3.2, < 6.1)
     formatador (0.2.5)
@@ -404,7 +403,7 @@ GEM
     ruby_dep (1.5.0)
     rubycas-client (2.3.9)
       activesupport
-    rubyzip (1.3.0)
+    rubyzip (2.0.0)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
@@ -429,9 +428,9 @@ GEM
       faraday (~> 0.8, < 0.10)
     select2-rails (4.0.3)
       thor (~> 0.14)
-    selenium-webdriver (3.14.1)
-      childprocess (~> 0.5)
-      rubyzip (~> 1.2, >= 1.2.2)
+    selenium-webdriver (3.142.6)
+      childprocess (>= 0.5, < 4.0)
+      rubyzip (>= 1.2.2)
     shellany (0.0.1)
     shoulda-matchers (3.1.3)
       activesupport (>= 4.0.0)
@@ -558,10 +557,10 @@ DEPENDENCIES
   rspec-rails (~> 4.0.0.beta2)
   rubocop (~> 0.49.1)
   ruby-progressbar (~> 1.8.1)
-  rubyzip (~> 1.3.0)
+  rubyzip (~> 2.0.0)
   sass-rails (~> 5.0.6)
   select2-rails (~> 4.0.3)
-  selenium-webdriver (~> 3.14.1)
+  selenium-webdriver (~> 3.142.6)
   shoulda-matchers (~> 3.1.3)
   simple_form (~> 5.0.1)
   spring (~> 2.0.2)