diff --git a/ext/cbson/version.h b/ext/cbson/version.h
index ac2711a..e5a4d77 100644
--- a/ext/cbson/version.h
+++ b/ext/cbson/version.h
@@ -14,4 +14,4 @@
  * limitations under the License.
  */
 
-#define VERSION "0.18.3"
+#define VERSION "0.18.3p"
diff --git a/lib/mongo.rb b/lib/mongo.rb
index 27ac636..53dd30e 100644
--- a/lib/mongo.rb
+++ b/lib/mongo.rb
@@ -1,7 +1,7 @@
 $:.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
 
 module Mongo
-  VERSION = "0.18.3"
+  VERSION = "0.18.3p"
 end
 
 begin
diff --git a/mongo-extensions.gemspec b/mongo-extensions.gemspec
index 2479209..27657c1 100644
--- a/mongo-extensions.gemspec
+++ b/mongo-extensions.gemspec
@@ -1,6 +1,6 @@
 require 'lib/mongo'
 VERSION_HEADER = File.open(File.join(File.dirname(__FILE__), 'ext', 'cbson', 'version.h'), "r")
-VERSION        = VERSION_HEADER.read.scan(/VERSION\s+"(\d+\.\d+(\.\d+)?)\"/)[0][0]
+VERSION        = VERSION_HEADER.read.scan(/VERSION\s+"(\d+\.\d+(\.\d+\w*)?)\"/)[0][0]
 Gem::Specification.new do |s|
   s.name = 'mongo_ext'