diff --git a/docs/HISTORY.md b/docs/HISTORY.md
index 4a1fb57..fed7815 100644
--- a/docs/HISTORY.md
+++ b/docs/HISTORY.md
@@ -1,5 +1,13 @@
 # MongoDB Ruby Driver History
 
+### 1.2.4
+2011-2-23
+
+* Fix the exception message shown when there's an IOError (malditogeek)
+* Another update to map-reduce docs for v1.8. Note that if you use the new
+  output option {:out => {:inline => true}}, then you must also specify
+  :raw => true.
+
 ### 1.2.3
 2011-2-22
 
diff --git a/ext/cbson/version.h b/ext/cbson/version.h
index 5658cfe..09c43cd 100644
--- a/ext/cbson/version.h
+++ b/ext/cbson/version.h
@@ -14,4 +14,4 @@
  * limitations under the License.
  */
 
-#define VERSION "1.2.3"
+#define VERSION "1.2.4"
diff --git a/lib/bson.rb b/lib/bson.rb
index 7d64e4f..60504de 100644
--- a/lib/bson.rb
+++ b/lib/bson.rb
@@ -18,10 +18,10 @@
 
 $:.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
 
-MINIMUM_BSON_EXT_VERSION = "1.2.3"
+MINIMUM_BSON_EXT_VERSION = "1.2.4"
 
 module BSON
-  VERSION = "1.2.3"
+  VERSION = "1.2.4"
 
   if defined? Mongo::DEFAULT_MAX_BSON_SIZE
     DEFAULT_MAX_BSON_SIZE = Mongo::DEFAULT_MAX_BSON_SIZE
diff --git a/lib/mongo.rb b/lib/mongo.rb
index 5ff8065..ebc715f 100644
--- a/lib/mongo.rb
+++ b/lib/mongo.rb
@@ -19,7 +19,7 @@
 $:.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
 
 module Mongo
-  VERSION = "1.2.3"
+  VERSION = "1.2.4"
 end
 
 module Mongo