diff --git a/scripts/sharing-test.sh b/scripts/sharing-test.sh
index c9bdb7aa8ebe797007662a1397eed897b55c704c..ee0783a74becdd4558bce2ddbdb1002bab20b7e6 100755
--- a/scripts/sharing-test.sh
+++ b/scripts/sharing-test.sh
@@ -2,5 +2,5 @@
 set -ev
 
 cd tests/sharing
-bundle install
+bundle install --jobs=3 --retry=3
 bundle exec ruby tests/*.rb
diff --git a/tests/sharing/Gemfile b/tests/sharing/Gemfile
index 8a0165a44cd8dc47faafbca2e7ed0b169551969b..b31b6eba097bbf86439058d1278cb8dd4ae01a26 100644
--- a/tests/sharing/Gemfile
+++ b/tests/sharing/Gemfile
@@ -3,6 +3,7 @@ source 'https://rubygems.org'
 gem "awesome_print"
 gem "faker"
 gem "mimemagic"
+gem "minitest"
 gem "pry"
 gem "pry-rescue"
 gem "rest-client"
diff --git a/tests/sharing/Gemfile.lock b/tests/sharing/Gemfile.lock
index 74ab931bf64ea4866f11b468dc4deeead3f35481..6f0c2630035554a7c4a11c92919234dc45e983c7 100644
--- a/tests/sharing/Gemfile.lock
+++ b/tests/sharing/Gemfile.lock
@@ -18,6 +18,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mimemagic (0.3.2)
+    minitest (5.11.3)
     netrc (0.11.0)
     pry (0.11.3)
       coderay (~> 1.1.0)
@@ -40,6 +41,7 @@ DEPENDENCIES
   awesome_print
   faker
   mimemagic
+  minitest
   pry
   pry-rescue
   rest-client