diff --git a/Gemfile.lock b/Gemfile.lock
index b45ab89b..ca3b963d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -101,7 +101,7 @@ GEM
     coercible (1.0.0)
       descendants_tracker (~> 0.0.1)
     concurrent-ruby (1.1.5)
-    crass (1.0.4)
+    crass (1.0.5)
     daemons (1.2.4)
     database_cleaner (1.5.3)
     ddr-alerts (1.1.0)
@@ -253,7 +253,7 @@ GEM
       sparql (~> 1.99)
       sparql-client (~> 1.99)
     logger (1.2.8.1)
-    loofah (2.2.3)
+    loofah (2.3.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -271,7 +271,7 @@ GEM
     net-http-persistent (2.9.4)
     net-ldap (0.16.1)
     netrc (0.11.0)
-    nokogiri (1.10.1)
+    nokogiri (1.10.5)
       mini_portile2 (~> 2.4.0)
     nom-xml (0.6.0)
       activesupport (>= 3.2.18)