diff --git a/bindings/ruby/unicorn_gem/lib/unicorn/unicorn_const.rb b/bindings/ruby/unicorn_gem/lib/unicorn/unicorn_const.rb
index 7fe8a994..1543010d 100644
--- a/bindings/ruby/unicorn_gem/lib/unicorn/unicorn_const.rb
+++ b/bindings/ruby/unicorn_gem/lib/unicorn/unicorn_const.rb
@@ -58,6 +58,7 @@ module Unicorn
 	UC_ERR_FETCH_UNALIGNED = 18
 	UC_ERR_HOOK_EXIST = 19
 	UC_ERR_RESOURCE = 20
+	UC_ERR_EXCEPTION = 21
 	UC_MEM_READ = 16
 	UC_MEM_WRITE = 17
 	UC_MEM_FETCH = 18
@@ -67,6 +68,7 @@ module Unicorn
 	UC_MEM_WRITE_PROT = 22
 	UC_MEM_READ_PROT = 23
 	UC_MEM_FETCH_PROT = 24
+	UC_MEM_READ_AFTER = 25
 	UC_HOOK_INTR = 1
 	UC_HOOK_INSN = 2
 	UC_HOOK_CODE = 4
@@ -80,6 +82,7 @@ module Unicorn
 	UC_HOOK_MEM_READ = 1024
 	UC_HOOK_MEM_WRITE = 2048
 	UC_HOOK_MEM_FETCH = 4096
+	UC_HOOK_MEM_READ_AFTER = 8192
 	UC_HOOK_MEM_UNMAPPED = 112
 	UC_HOOK_MEM_PROT = 896
 	UC_HOOK_MEM_READ_INVALID = 144