diff --git a/android/Gemfile.lock b/android/Gemfile.lock
index 6ae24f6..07a9a40 100644
--- a/android/Gemfile.lock
+++ b/android/Gemfile.lock
@@ -33,7 +33,7 @@ GEM
     diff-lcs (1.3)
     ffi (1.12.2)
     gherkin (4.1.3)
-    json (2.1.0)
+    json (2.3.1)
     mini_portile2 (2.4.0)
     multi_json (1.12.2)
     multi_test (0.1.2)