diff --git a/foss4guk2025/Gemfile.lock b/foss4guk2025/Gemfile.lock
index 6e9812f..6334a9c 100644
--- a/foss4guk2025/Gemfile.lock
+++ b/foss4guk2025/Gemfile.lock
@@ -243,23 +243,23 @@ GEM
     minitest (5.25.5)
     net-http (0.6.0)
       uri
-    nokogiri (1.18.8-aarch64-linux-gnu)
+    nokogiri (1.19.4-aarch64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.8-aarch64-linux-musl)
+    nokogiri (1.19.4-aarch64-linux-musl)
       racc (~> 1.4)
-    nokogiri (1.18.8-arm-linux-gnu)
+    nokogiri (1.19.4-arm-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.8-arm-linux-musl)
+    nokogiri (1.19.4-arm-linux-musl)
       racc (~> 1.4)
-    nokogiri (1.18.8-arm64-darwin)
+    nokogiri (1.19.4-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.8-x64-mingw-ucrt)
+    nokogiri (1.19.4-x64-mingw-ucrt)
       racc (~> 1.4)
-    nokogiri (1.18.8-x86_64-darwin)
+    nokogiri (1.19.4-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.8-x86_64-linux-gnu)
+    nokogiri (1.19.4-x86_64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.8-x86_64-linux-musl)
+    nokogiri (1.19.4-x86_64-linux-musl)
       racc (~> 1.4)
     octokit (4.25.1)
       faraday (>= 1, < 3)