diff --git a/Gemfile.lock b/Gemfile.lock
index d4b691e83..3aa9aaa1a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -205,7 +205,7 @@ GEM
     descendants_tracker (0.0.4)
       thread_safe (~> 0.3, >= 0.3.1)
     device_detector (1.0.6)
-    devise (4.8.0)
+    devise (4.8.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
       railties (>= 4.1.0)
diff --git a/vendor/cache/devise-4.8.0.gem b/vendor/cache/devise-4.8.0.gem
deleted file mode 100644
index 5331f80d0..000000000
Binary files a/vendor/cache/devise-4.8.0.gem and /dev/null differ
diff --git a/vendor/cache/devise-4.8.1.gem b/vendor/cache/devise-4.8.1.gem
new file mode 100644
index 000000000..36cd4b921
Binary files /dev/null and b/vendor/cache/devise-4.8.1.gem differ