diff --git a/5-support-vector-machines/Gemfile.lock b/5-support-vector-machines/Gemfile.lock
index b1a159a..62aaa4e 100644
--- a/5-support-vector-machines/Gemfile.lock
+++ b/5-support-vector-machines/Gemfile.lock
@@ -9,16 +9,20 @@ GEM
       minitest (~> 5.0)
     mocha (0.14.0)
       metaclass (~> 0.0.1)
-    rack (1.6.12)
-    rack-protection (1.5.5)
+    mustermann (2.0.2)
+      ruby2_keywords (~> 0.0.1)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rake (12.3.3)
     rb-libsvm (1.1.3)
-    sinatra (1.4.3)
-      rack (~> 1.4)
-      rack-protection (~> 1.4)
-      tilt (~> 1.3, >= 1.3.4)
-    tilt (1.4.1)
+    ruby2_keywords (0.0.5)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
+      tilt (~> 2.0)
+    tilt (2.0.11)
 
 PLATFORMS
   ruby