diff --git a/Gemfile.devel b/Gemfile.devel
deleted file mode 100644
index 6335637b..00000000
--- a/Gemfile.devel
+++ /dev/null
@@ -1,2 +0,0 @@
-gem "isodoc", git: "https://github.com/metanorma/isodoc", branch: "fix/preface-toc"
-
diff --git a/lib/metanorma/cc/version.rb b/lib/metanorma/cc/version.rb
index 2a55ed22..770e8f8f 100644
--- a/lib/metanorma/cc/version.rb
+++ b/lib/metanorma/cc/version.rb
@@ -1,5 +1,5 @@
 module Metanorma
   module CC
-    VERSION = "2.2.7".freeze
+    VERSION = "2.2.8".freeze
   end
 end