diff --git a/evaluationserver/Gemfile.lock b/evaluationserver/Gemfile.lock
index d555d8371..847fb8367 100644
--- a/evaluationserver/Gemfile.lock
+++ b/evaluationserver/Gemfile.lock
@@ -44,8 +44,8 @@ GEM
       tzinfo (~> 1.1)
     acts_as_list (0.9.19)
       activerecord (>= 3.0)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (9.0.0)
     ast (2.4.0)
     autoprefixer-rails (9.6.1)
@@ -134,7 +134,9 @@ GEM
     mime-types (3.2.2)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.0331)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
@@ -152,7 +154,7 @@ GEM
       terrapin (~> 0.6.0)
     parser (2.6.3.0)
       ast (~> 2.4.0)
-    public_suffix (3.1.1)
+    public_suffix (5.0.0)
     puma (4.0.1)
       nio4r (~> 2.0)
     rack (2.0.7)