diff --git a/Gemfile.lock b/Gemfile.lock
index 6f2ccfc..b896adc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -215,10 +215,10 @@ GEM
       net-protocol
     nio4r (2.7.4)
     nkf (0.2.0)
-    nokogiri (1.16.8)
+    nokogiri (1.18.3)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.16.8-x86_64-linux)
+    nokogiri (1.18.3-x86_64-linux-gnu)
       racc (~> 1.4)
     ostruct (0.6.1)
     pdf-core (0.10.0)
@@ -414,8 +414,8 @@ CHECKSUMS
   net-smtp (0.5.0) sha256=5fc0415e6ea1cc0b3dfea7270438ec22b278ca8d524986a3ae4e5ae8d087b42a
   nio4r (2.7.4) sha256=d95dee68e0bb251b8ff90ac3423a511e3b784124e5db7ff5f4813a220ae73ca9
   nkf (0.2.0) sha256=fbc151bda025451f627fafdfcb3f4f13d0b22ae11f58c6d3a2939c76c5f5f126
-  nokogiri (1.16.8) sha256=dece4bf9a663b2d6b6e874716297ad414c95be694656972d54049bd088f752a1
-  nokogiri (1.16.8-x86_64-linux) sha256=ed7b1f80713ac968dd93fe2b96fc3df6e448b73bd02dd77d5fc89ba92a1ed6d9
+  nokogiri (1.18.3) sha256=6b9fc3b14fd0cedd21f6cad8cf565123ba7401e56b5d0aec180c23cdca28fd5a
+  nokogiri (1.18.3-x86_64-linux-gnu) sha256=3c7ad5cee39855ed9c746065f39b584b9fd2aaff61df02d0f85ba8d671bbe497
   ostruct (0.6.1) sha256=09a3fb7ecc1fa4039f25418cc05ae9c82bd520472c5c6a6f515f03e4988cb817
   pdf-core (0.10.0) sha256=0a5d101e2063c01e3f941e1ee47cbb97f1adfc1395b58372f4f65f1300f3ce91
   pg (1.5.9) sha256=761efbdf73b66516f0c26fcbe6515dc7500c3f0aa1a1b853feae245433c64fdc