diff --git a/hydra-access-controls/app/models/hydra/access_controls/permission.rb b/hydra-access-controls/app/models/hydra/access_controls/permission.rb
index cf957d803..0f5897726 100644
--- a/hydra-access-controls/app/models/hydra/access_controls/permission.rb
+++ b/hydra-access-controls/app/models/hydra/access_controls/permission.rb
@@ -41,7 +41,7 @@ def assign_attributes(attributes)
     end
 
     def agent_name
-      URI.decode(parsed_agent.last)
+      URI.decode_www_form_component(parsed_agent.last)
     end
 
     def update(*)
@@ -79,8 +79,11 @@ def build_agent(name, type)
                    end
     end
 
+    # The current URL.hash standard (As of March 2021) is that the post-hash portion of the URL is not percent-decoded
+    # however in order to ensure backward compatibility with already recorded values we are normalizing
+    # the fragment here. See https://developer.mozilla.org/en-US/docs/Web/API/URL/hash
     def build_agent_resource(prefix, name)
-      [Agent.new(::RDF::URI.new("#{prefix}##{URI.encode(name)}"))]
+      [Agent.new(::RDF::URI.new("#{prefix}##{URI.encode(name)}").normalize!)]
     end
 
     def build_access(access)
diff --git a/hydra-head.gemspec b/hydra-head.gemspec
index 9f4a8122f..9a924291e 100644
--- a/hydra-head.gemspec
+++ b/hydra-head.gemspec
@@ -18,14 +18,14 @@ Gem::Specification.new do |s|
 
   s.add_dependency 'hydra-access-controls', version
   s.add_dependency 'hydra-core', version
-  s.add_dependency 'rails', '>= 5.2', '< 6.1'
+  s.add_dependency 'rails', '>= 5.2.4', '< 6.1'
 
   s.add_development_dependency 'coveralls'
   s.add_development_dependency 'engine_cart', '~> 2.2'
   s.add_development_dependency 'factory_bot'
-  s.add_development_dependency 'fcrepo_wrapper', '~> 0.6'
+  s.add_development_dependency 'fcrepo_wrapper', '~> 0.9'
   s.add_development_dependency 'rspec-rails'
   s.add_development_dependency 'simplecov'
-  s.add_development_dependency 'solr_wrapper', '~> 0.18'
+  s.add_development_dependency 'solr_wrapper', '~> 3'
   s.add_development_dependency 'rspec_junit_formatter'
 end