diff --git a/specs/assets/sinatra-app/Gemfile.lock b/specs/assets/sinatra-app/Gemfile.lock
index c12cacea..c5b4ccc0 100644
--- a/specs/assets/sinatra-app/Gemfile.lock
+++ b/specs/assets/sinatra-app/Gemfile.lock
@@ -5,8 +5,8 @@ GEM
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
     mysql2 (0.5.6)
-    nio4r (2.7.0)
-    puma (6.4.2)
+    nio4r (2.7.3)
+    puma (6.4.3)
       nio4r (~> 2.0)
     rack (3.0.9.1)
     rack-protection (4.0.0)