diff --git a/HYDRA_VERSION b/HYDRA_VERSION
index d1dd3f904..04ada833e 100644
--- a/HYDRA_VERSION
+++ b/HYDRA_VERSION
@@ -1 +1 @@
-10.6.0
+10.6.1
diff --git a/hydra-core/lib/hydra-head/version.rb b/hydra-core/lib/hydra-head/version.rb
index 68e9b0c93..fa4999ed3 100644
--- a/hydra-core/lib/hydra-head/version.rb
+++ b/hydra-core/lib/hydra-head/version.rb
@@ -1,3 +1,3 @@
 module HydraHead
-  VERSION = "10.6.0"
+  VERSION = "10.6.1"
 end
diff --git a/hydra-head.gemspec b/hydra-head.gemspec
index 01f31a98a..a2b17d44b 100644
--- a/hydra-head.gemspec
+++ b/hydra-head.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'rails', '>= 3.2.6'
 
   s.add_development_dependency 'coveralls'
-  s.add_development_dependency 'engine_cart', '~> 1.0'
+  s.add_development_dependency 'engine_cart', '~> 2.1'
   s.add_development_dependency 'factory_bot_rails'
   s.add_development_dependency 'fcrepo_wrapper', '~> 0.6'
   s.add_development_dependency 'rspec-rails'