diff --git a/spec/test_app/Gemfile.lock b/spec/test_app/Gemfile.lock
index c7e5660..21ae129 100644
--- a/spec/test_app/Gemfile.lock
+++ b/spec/test_app/Gemfile.lock
@@ -2,7 +2,7 @@ PATH
   remote: ../..
   specs:
     iban_bic (1.4.4)
-      rails (~> 6.1)
+      rails (>= 5.1)
       regexp-examples (~> 1.3)
 
 GEM
@@ -87,7 +87,7 @@ GEM
     mini_portile2 (2.8.0)
     minitest (5.15.0)
     nio4r (2.5.8)
-    nokogiri (1.13.3)
+    nokogiri (1.13.4)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     racc (1.6.0)