diff --git a/build/arduino-builder-linux32-1.3.3.tar.bz2.sha b/build/arduino-builder-linux32-1.3.3.tar.bz2.sha
deleted file mode 100644
index d07abc56c..000000000
--- a/build/arduino-builder-linux32-1.3.3.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-34030663e5467098712872b44e7e035e70d796d2
diff --git a/build/arduino-builder-linux32-1.3.4.tar.bz2.sha b/build/arduino-builder-linux32-1.3.4.tar.bz2.sha
new file mode 100644
index 000000000..d14f8b2bc
--- /dev/null
+++ b/build/arduino-builder-linux32-1.3.4.tar.bz2.sha
@@ -0,0 +1 @@
+75affd369c449be5e6d624623d7b317d9d10c039
diff --git a/build/arduino-builder-linux64-1.3.3.tar.bz2.sha b/build/arduino-builder-linux64-1.3.3.tar.bz2.sha
deleted file mode 100644
index b46527c77..000000000
--- a/build/arduino-builder-linux64-1.3.3.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-514a14eb20e339ab7b4b155b73679d00e98bc8d3
diff --git a/build/arduino-builder-linux64-1.3.4.tar.bz2.sha b/build/arduino-builder-linux64-1.3.4.tar.bz2.sha
new file mode 100644
index 000000000..5491778f8
--- /dev/null
+++ b/build/arduino-builder-linux64-1.3.4.tar.bz2.sha
@@ -0,0 +1 @@
+fcf558e9ab9372cc8366f7fb562d0993aeaf61b2
diff --git a/build/arduino-builder-macosx-1.3.3.tar.bz2.sha b/build/arduino-builder-macosx-1.3.3.tar.bz2.sha
deleted file mode 100644
index 62c8780be..000000000
--- a/build/arduino-builder-macosx-1.3.3.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-78c0c96f7d630b546da8dc31e3e7833c01bd6a28
diff --git a/build/arduino-builder-macosx-1.3.4.tar.bz2.sha b/build/arduino-builder-macosx-1.3.4.tar.bz2.sha
new file mode 100644
index 000000000..221af244a
--- /dev/null
+++ b/build/arduino-builder-macosx-1.3.4.tar.bz2.sha
@@ -0,0 +1 @@
+a7dbc63e6372495ec1a553a51380ebfefbd8d182
diff --git a/build/arduino-builder-windows-1.3.3.zip.sha b/build/arduino-builder-windows-1.3.3.zip.sha
deleted file mode 100644
index 172ac1bc9..000000000
--- a/build/arduino-builder-windows-1.3.3.zip.sha
+++ /dev/null
@@ -1 +0,0 @@
-914af50663d61eab31b1a153b953fff361a37a17
diff --git a/build/arduino-builder-windows-1.3.4.zip.sha b/build/arduino-builder-windows-1.3.4.zip.sha
new file mode 100644
index 000000000..841584bd4
--- /dev/null
+++ b/build/arduino-builder-windows-1.3.4.zip.sha
@@ -0,0 +1 @@
+1a0b54ae576526866549c20ca56db3df3d1aeb3c
diff --git a/build/build.xml b/build/build.xml
index b165957a8..e6826f71c 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -71,7 +71,7 @@
     </or>
   </condition>
 
-  <property name="ARDUINO-BUILDER-VERSION" value="1.3.3" />
+  <property name="ARDUINO-BUILDER-VERSION" value="1.3.4" />
 
   <!-- Libraries required for running arduino -->
   <fileset dir=".." id="runtime.jars">