diff --git a/Gemfile.lock b/Gemfile.lock
index 205790b..776491b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,9 +8,11 @@ GEM
     nokogiri (1.14.3)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
+    pkg-config (1.5.5)
     racc (1.6.2)
     rake (13.0.3)
-    rmagick (4.1.2)
+    rmagick (5.3.0)
+      pkg-config (~> 1.4)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)
       rspec-expectations (~> 3.10.0)