diff --git a/Gemfile.lock b/Gemfile.lock
index 97e7358..2e78395 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,8 +26,8 @@ GEM
     coderay (1.1.2)
     concurrent-ruby (1.1.4)
     diff-lcs (1.3)
-    ffi (1.9.23)
-    ffi (1.9.23-java)
+    ffi (1.14.2)
+    ffi (1.14.2-java)
     formatador (0.2.5)
     getopt (1.4.3)
     guard (2.14.2)
@@ -91,6 +91,7 @@ GEM
       ffi
     thor (0.20.0)
     thread_safe (0.3.6)
+    thread_safe (0.3.6-java)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)