diff --git a/app/android/Gemfile.lock b/app/android/Gemfile.lock
index 95a9ebb6..d45bcea9 100644
--- a/app/android/Gemfile.lock
+++ b/app/android/Gemfile.lock
@@ -171,7 +171,7 @@ GEM
       trailblazer-option (>= 0.1.1, < 0.2.0)
       uber (< 0.2.0)
     retriable (3.1.2)
-    rexml (3.3.8)
+    rexml (3.3.9)
     rouge (2.0.7)
     ruby2_keywords (0.0.5)
     rubyzip (2.3.2)