diff --git a/Gemfile.lock b/Gemfile.lock
index f9d109c..ce7b6f9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -92,7 +92,7 @@ GEM
       stringio
     public_suffix (7.0.5)
     racc (1.8.1)
-    rack (3.2.5)
+    rack (3.2.6)
     rainbow (3.1.1)
     rake (13.3.1)
     rdoc (7.0.3)
diff --git a/spec/acceptance/docker-compose.yml b/spec/acceptance/docker-compose.yml
index 7350f66..00807ec 100644
--- a/spec/acceptance/docker-compose.yml
+++ b/spec/acceptance/docker-compose.yml
@@ -30,7 +30,7 @@ services:
       - "${DIR}/spec/acceptance/git-server/keys:/git-server/keys:ro"
   ldap-server:
     entrypoint: /acceptance/ldap-server/run-server.sh
-    image: osixia/openldap:1.2.2
+    image: osixia/openldap:1.2.4
     networks:
       ldap-network:
         aliases:
diff --git a/vendor/cache/rack-3.2.5.gem b/vendor/cache/rack-3.2.5.gem
deleted file mode 100644
index 145bc44..0000000
Binary files a/vendor/cache/rack-3.2.5.gem and /dev/null differ
diff --git a/vendor/cache/rack-3.2.6.gem b/vendor/cache/rack-3.2.6.gem
new file mode 100644
index 0000000..f243c2f
Binary files /dev/null and b/vendor/cache/rack-3.2.6.gem differ