diff --git a/sidecar-dependent-app/Gemfile.lock b/sidecar-dependent-app/Gemfile.lock
index 7da8d19..feec7d0 100644
--- a/sidecar-dependent-app/Gemfile.lock
+++ b/sidecar-dependent-app/Gemfile.lock
@@ -6,9 +6,10 @@ GEM
       ffi (>= 1.3.0)
     ffi (1.10.0)
     json (2.1.0)
-    mustermann (1.0.3)
-    rack (2.0.6)
-    rack-protection (2.0.4)
+    mustermann (2.0.2)
+      ruby2_keywords (~> 0.0.1)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rack-test (0.8.3)
       rack (>= 1.0, < 3)
@@ -25,12 +26,13 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.7.0)
     rspec-support (3.7.1)
-    sinatra (2.0.4)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.4)
+    ruby2_keywords (0.0.5)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
-    tilt (2.0.9)
+    tilt (2.0.11)
     typhoeus (1.3.1)
       ethon (>= 0.9.0)