diff --git a/spec/test_app/Gemfile.lock b/spec/test_app/Gemfile.lock
index c7e5660..b696f09 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
@@ -76,7 +76,7 @@ GEM
       activesupport (>= 5.0)
     i18n (1.10.0)
       concurrent-ruby (~> 1.0)
-    loofah (2.14.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -87,10 +87,10 @@ GEM
     mini_portile2 (2.8.0)
     minitest (5.15.0)
     nio4r (2.5.8)
-    nokogiri (1.13.3)
+    nokogiri (1.13.10)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    racc (1.6.0)
+    racc (1.6.1)
     rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)