diff --git a/doc/Changelog.html b/doc/Changelog.html
index 1655268f..6054be24 100644
--- a/doc/Changelog.html
+++ b/doc/Changelog.html
@@ -24,6 +24,7 @@ a:visited { color: #0000EE; }
 <li>Added a menu for bookmarking "favorite" output folders to the "output folder" tab
 <li>Added Polish translation, thanks to Sir Daniel K &lt;sir.daniel.k@gmail.com&gt;
 <li>Updated Qt runtime libraries to v4.8.0 Beta-1 (2011-07-19), compiled with MSVC 10.0
+<li>Updated mpg123 decoder to v1.13.4 (2011-09-07), compiled with GCC 4.6.1
 <li>Updated MediaInfo to v0.7.49 (2011-09-09), compiled with MSVC 10.0
 <li>Updated language files (big thank-you to all contributors !!!)
 <li>Improved "downmix" filter by using explicit channel mappings for each number of input channels
diff --git a/res/tools/mpg123.exe b/res/tools/mpg123.exe
index 87c39d29..0da1ab0c 100644
Binary files a/res/tools/mpg123.exe and b/res/tools/mpg123.exe differ
diff --git a/src/Config.h b/src/Config.h
index 5fd3b838..858f947b 100644
--- a/src/Config.h
+++ b/src/Config.h
@@ -30,7 +30,7 @@
 #define VER_LAMEXP_MINOR_LO					3
 #define VER_LAMEXP_TYPE						Beta
 #define VER_LAMEXP_PATCH					3
-#define VER_LAMEXP_BUILD					727
+#define VER_LAMEXP_BUILD					728
 
 ///////////////////////////////////////////////////////////////////////////////
 // Tools versions
diff --git a/src/Thread_Initialization.cpp b/src/Thread_Initialization.cpp
index 40cd0fbd..b34b2e1b 100644
--- a/src/Thread_Initialization.cpp
+++ b/src/Thread_Initialization.cpp
@@ -78,7 +78,7 @@ g_lamexp_tools[] =
 	{"a521603c070cbd91a54df54bbaf0d74336a61e9cf527b98eb2ee62c2ab424e6b834e3292", CPU_TYPE_X86_ALL, "mediainfo.i386.exe", 750},
 	{"6ca4f3c6e15df2e2091257d6f2647372e419e375ea914094c5f631d7d54c07375e685335", CPU_TYPE_X64_GEN, "mediainfo.x64.exe",  750},
 	{"a93ec86187025e66fb78026af35555bd3b4e30fe1a40e8d66f600cfd918f07f431f0b2f2", CPU_TYPE_ALL_ALL, "mpcdec.exe", 435},
-	{"5a89768010efb1ddfd88ccc378a89433ceaecb403a7b1f83f8716f6848d9a05b3d3c6d93", CPU_TYPE_ALL_ALL, "mpg123.exe", 1133},
+	{"7fa1beb4161d603563089cadd601f68fb9f436f05d9477b6a604501b072f5a973dd45fbb", CPU_TYPE_ALL_ALL, "mpg123.exe", 1134},
 	{"0c781805dda931c529bd16069215f616a7a4c5e5c2dfb6b75fe85d52b20511830693e528", CPU_TYPE_ALL_ALL, "oggdec.exe", UINT_MAX},
 	{"0c019e13450dc664987e21f4e5489d182be7d6d0d81efbbaaf1c78693dfe3e38e0355b93", CPU_TYPE_X86_GEN, "oggenc2.i386.exe", 287603},
 	{"693dd6f779df70a047c15c2c79350855db38d5b0cd7e529b6877b7c821cfe6addfdd50a4", CPU_TYPE_X86_SSE, "oggenc2.sse2.exe", 287603},