diff --git a/projects/bench_bnb_redux/solution/Gemfile.lock b/projects/bench_bnb_redux/solution/Gemfile.lock
index 2e04aec9..79c31851 100644
--- a/projects/bench_bnb_redux/solution/Gemfile.lock
+++ b/projects/bench_bnb_redux/solution/Gemfile.lock
@@ -69,7 +69,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
-    crass (1.0.4)
+    crass (1.0.5)
     debug_inspector (0.0.3)
     erubi (1.7.1)
     execjs (2.7.0)
@@ -89,19 +89,19 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.2)
+    loofah (2.3.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
       mini_mime (>= 0.1.1)
     method_source (0.9.0)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     nio4r (2.3.0)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.5)
+      mini_portile2 (~> 2.4.0)
     pg (0.21.0)
     pry (0.11.3)
       coderay (~> 1.1.0)