diff --git a/Gemfile.lock b/Gemfile.lock
index 47e56ea..3c5b5dc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,7 +30,7 @@ GEM
       multi_json
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
-    dotenv (2.7.6)
+    dotenv (3.1.6)
     drb (2.2.0)
       ruby2_keywords
     excon (0.92.3)