diff --git a/Gemfile.lock b/Gemfile.lock
index 9d25ffd..8f7b1eb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -119,7 +119,7 @@ GEM
       optimist (~> 3)
     latex-decode (0.4.0)
     link_header (0.0.8)
-    loofah (2.19.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     maremma (4.9.9)
@@ -141,7 +141,7 @@ GEM
     multi_json (1.15.0)
     multipart-post (2.2.3)
     namae (1.0.2)
-    nokogiri (1.13.9-x86_64-linux)
+    nokogiri (1.13.10-x86_64-linux)
       racc (~> 1.4)
     oj (3.13.23)
     oj_mimic_json (1.0.1)
@@ -151,7 +151,7 @@ GEM
       nokogiri (>= 1.8.0)
       public_suffix (>= 2.0.0, < 2.1)
     public_suffix (2.0.5)
-    racc (1.6.0)
+    racc (1.6.1)
     rack (2.2.4)
     rack-test (0.8.3)
       rack (>= 1.0, < 3)