diff --git a/build/arduino-builder-linux32-1.0.0-beta18.tar.bz2.sha b/build/arduino-builder-linux32-1.0.0-beta18.tar.bz2.sha
deleted file mode 100644
index 5c952240a..000000000
--- a/build/arduino-builder-linux32-1.0.0-beta18.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-116be2d595f2e43209e21f0a5f432fd923638e4f
diff --git a/build/arduino-builder-linux32-1.0.0-beta19.tar.bz2.sha b/build/arduino-builder-linux32-1.0.0-beta19.tar.bz2.sha
new file mode 100644
index 000000000..11863b68c
--- /dev/null
+++ b/build/arduino-builder-linux32-1.0.0-beta19.tar.bz2.sha
@@ -0,0 +1 @@
+b0498ae65c4b47eba7d12a6692225bea15ac6380
diff --git a/build/arduino-builder-linux64-1.0.0-beta18.tar.bz2.sha b/build/arduino-builder-linux64-1.0.0-beta18.tar.bz2.sha
deleted file mode 100644
index e89e1f545..000000000
--- a/build/arduino-builder-linux64-1.0.0-beta18.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-e9471f83306b879d12f333ef7cb408bb17ee3086
diff --git a/build/arduino-builder-linux64-1.0.0-beta19.tar.bz2.sha b/build/arduino-builder-linux64-1.0.0-beta19.tar.bz2.sha
new file mode 100644
index 000000000..d1f6b1a25
--- /dev/null
+++ b/build/arduino-builder-linux64-1.0.0-beta19.tar.bz2.sha
@@ -0,0 +1 @@
+7dbb49002c499b49e370a2935a5053d9ca1749fe
diff --git a/build/arduino-builder-macosx-1.0.0-beta18.tar.bz2.sha b/build/arduino-builder-macosx-1.0.0-beta18.tar.bz2.sha
deleted file mode 100644
index 860366470..000000000
--- a/build/arduino-builder-macosx-1.0.0-beta18.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-d01731e19c439b4df3909310c83c9a8d3d92de60
diff --git a/build/arduino-builder-macosx-1.0.0-beta19.tar.bz2.sha b/build/arduino-builder-macosx-1.0.0-beta19.tar.bz2.sha
new file mode 100644
index 000000000..32576d500
--- /dev/null
+++ b/build/arduino-builder-macosx-1.0.0-beta19.tar.bz2.sha
@@ -0,0 +1 @@
+60f31e0e2d7a36897aadaf8a3362379ce469e3d7
diff --git a/build/arduino-builder-windows-1.0.0-beta18.zip.sha b/build/arduino-builder-windows-1.0.0-beta18.zip.sha
deleted file mode 100644
index 57ec258e1..000000000
--- a/build/arduino-builder-windows-1.0.0-beta18.zip.sha
+++ /dev/null
@@ -1 +0,0 @@
-6115d2a304e96148d0da5d59aeed545cdb79455e
diff --git a/build/arduino-builder-windows-1.0.0-beta19.zip.sha b/build/arduino-builder-windows-1.0.0-beta19.zip.sha
new file mode 100644
index 000000000..5c44792a4
--- /dev/null
+++ b/build/arduino-builder-windows-1.0.0-beta19.zip.sha
@@ -0,0 +1 @@
+e11ba6048ea67380a764bad19dc6932b22fc25af
diff --git a/build/build.xml b/build/build.xml
index 483cca2b6..528f5c758 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -71,7 +71,7 @@
     </or>
   </condition>
 
-  <property name="ARDUINO-BUILDER-VERSION" value="1.0.0-beta18" />
+  <property name="ARDUINO-BUILDER-VERSION" value="1.0.0-beta19" />
 
   <!-- Libraries required for running arduino -->
   <fileset dir=".." id="runtime.jars">