diff --git a/livesupport/tools/pear/bin/install.sh b/livesupport/tools/pear/bin/install.sh
index bfd6f82c2..bfb501fe8 100755
--- a/livesupport/tools/pear/bin/install.sh
+++ b/livesupport/tools/pear/bin/install.sh
@@ -62,7 +62,7 @@ XML_Serializer
 
 VERSION_Archive_Tar=Archive_Tar-1.3.1
 VERSION_Console_Getopt=Console_Getopt-1.2
-VERSION_XML_RPC=XML_RPC-1.4.3
+VERSION_XML_RPC=XML_RPC-1.4.3-ls1
 VERSION_PEAR=PEAR-1.3.5
 VERSION_Calendar=Calendar-0.5.2
 VERSION_DB=DB-1.7.6
diff --git a/livesupport/tools/pear/src/XML_RPC-1.3.0RC1.tgz b/livesupport/tools/pear/src/XML_RPC-1.3.0RC1.tgz
deleted file mode 100644
index d2b612155..000000000
Binary files a/livesupport/tools/pear/src/XML_RPC-1.3.0RC1.tgz and /dev/null differ
diff --git a/livesupport/tools/pear/src/XML_RPC-1.4.0.tgz b/livesupport/tools/pear/src/XML_RPC-1.4.0.tgz
deleted file mode 100644
index 01fff3fd7..000000000
Binary files a/livesupport/tools/pear/src/XML_RPC-1.4.0.tgz and /dev/null differ
diff --git a/livesupport/tools/pear/src/XML_RPC-1.4.3-ls1.tgz b/livesupport/tools/pear/src/XML_RPC-1.4.3-ls1.tgz
new file mode 100644
index 000000000..3e6a98e82
Binary files /dev/null and b/livesupport/tools/pear/src/XML_RPC-1.4.3-ls1.tgz differ
diff --git a/livesupport/tools/pear/src/XML_RPC-1.4.3.tgz b/livesupport/tools/pear/src/XML_RPC-1.4.3.tgz
deleted file mode 100644
index 79ca397b0..000000000
Binary files a/livesupport/tools/pear/src/XML_RPC-1.4.3.tgz and /dev/null differ