diff --git a/Gemfile.lock b/Gemfile.lock
index 557a3df95..f435012b5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -193,10 +193,11 @@ GEM
     govuk_personalisation (1.0.0)
       plek (>= 1.9.0)
       rails (>= 6, < 8)
-    govuk_publishing_components (43.4.1)
+    govuk_publishing_components (43.5.0)
       govuk_app_config
       govuk_personalisation (>= 0.7.0)
       kramdown
+      ostruct
       plek
       rails (>= 6)
       rouge
@@ -521,6 +522,7 @@ GEM
     opentelemetry-semantic_conventions (1.10.1)
       opentelemetry-api (~> 1.0)
     orm_adapter (0.5.0)
+    ostruct (0.6.0)
     parallel (1.26.3)
     parser (3.3.5.0)
       ast (~> 2.4.1)