diff --git a/Gemfile.lock b/Gemfile.lock
index 63e9f5941..c800a0028 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -187,7 +187,7 @@ GEM
       jquery-rails (~> 4.3)
       plek (>= 2.1)
       rails (>= 6)
-    govuk_app_config (8.1.1)
+    govuk_app_config (9.0.1)
       logstasher (~> 2.1)
       opentelemetry-exporter-otlp (~> 0.25.0)
       opentelemetry-instrumentation-all (~> 0.39.1)