diff --git a/build/arduino-builder-linux32-1.4.1.tar.bz2.sha b/build/arduino-builder-linux32-1.4.1.tar.bz2.sha
deleted file mode 100644
index 68be0a69c..000000000
--- a/build/arduino-builder-linux32-1.4.1.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-62978fbc191cafee88cfe6c5cba0064751e53820
diff --git a/build/arduino-builder-linux32-1.4.2.tar.bz2.sha b/build/arduino-builder-linux32-1.4.2.tar.bz2.sha
new file mode 100644
index 000000000..4b4bb8eb3
--- /dev/null
+++ b/build/arduino-builder-linux32-1.4.2.tar.bz2.sha
@@ -0,0 +1 @@
+b437a66318434ffaa5d1774090880f89e763693a
diff --git a/build/arduino-builder-linux64-1.4.1.tar.bz2.sha b/build/arduino-builder-linux64-1.4.1.tar.bz2.sha
deleted file mode 100644
index abbceeac4..000000000
--- a/build/arduino-builder-linux64-1.4.1.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-5e348503a339c2df205da5cff483422eed104f0a
diff --git a/build/arduino-builder-linux64-1.4.2.tar.bz2.sha b/build/arduino-builder-linux64-1.4.2.tar.bz2.sha
new file mode 100644
index 000000000..969b98103
--- /dev/null
+++ b/build/arduino-builder-linux64-1.4.2.tar.bz2.sha
@@ -0,0 +1 @@
+4778eb4c1c98a0560aac99730264623fad93a674
diff --git a/build/arduino-builder-linuxaarch64-1.4.1.tar.bz2.sha b/build/arduino-builder-linuxaarch64-1.4.1.tar.bz2.sha
deleted file mode 100644
index d2cdbbb45..000000000
--- a/build/arduino-builder-linuxaarch64-1.4.1.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-a34dd5dd92ce1bdda4b097870c001bb0cba23780
diff --git a/build/arduino-builder-linuxaarch64-1.4.2.tar.bz2.sha b/build/arduino-builder-linuxaarch64-1.4.2.tar.bz2.sha
new file mode 100644
index 000000000..c0148fefa
--- /dev/null
+++ b/build/arduino-builder-linuxaarch64-1.4.2.tar.bz2.sha
@@ -0,0 +1 @@
+f32428723b7e05bf29bb19bc3e0c6e3621c796e4
diff --git a/build/arduino-builder-linuxarm-1.4.1.tar.bz2.sha b/build/arduino-builder-linuxarm-1.4.1.tar.bz2.sha
deleted file mode 100644
index af7c33b43..000000000
--- a/build/arduino-builder-linuxarm-1.4.1.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-305211e10a2a2aad337d6d374484000f7592373b
diff --git a/build/arduino-builder-linuxarm-1.4.2.tar.bz2.sha b/build/arduino-builder-linuxarm-1.4.2.tar.bz2.sha
new file mode 100644
index 000000000..05a3e6c65
--- /dev/null
+++ b/build/arduino-builder-linuxarm-1.4.2.tar.bz2.sha
@@ -0,0 +1 @@
+42852e3fcb49c1a21122210614869f7e911f2751
diff --git a/build/arduino-builder-macosx-1.4.1.tar.bz2.sha b/build/arduino-builder-macosx-1.4.1.tar.bz2.sha
deleted file mode 100644
index c8823f901..000000000
--- a/build/arduino-builder-macosx-1.4.1.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-e30d7e2919950bae258117811665dde2ba72453b
diff --git a/build/arduino-builder-macosx-1.4.2.tar.bz2.sha b/build/arduino-builder-macosx-1.4.2.tar.bz2.sha
new file mode 100644
index 000000000..099afe2e1
--- /dev/null
+++ b/build/arduino-builder-macosx-1.4.2.tar.bz2.sha
@@ -0,0 +1 @@
+a6243ba307c214b3f6fe2bba359b6c76905a8be8
diff --git a/build/arduino-builder-windows-1.4.1.zip.sha b/build/arduino-builder-windows-1.4.1.zip.sha
deleted file mode 100644
index cebe7a652..000000000
--- a/build/arduino-builder-windows-1.4.1.zip.sha
+++ /dev/null
@@ -1 +0,0 @@
-9fef5b076e9ad7dd31c3b81abe210b2ea6a07f25
diff --git a/build/arduino-builder-windows-1.4.2.zip.sha b/build/arduino-builder-windows-1.4.2.zip.sha
new file mode 100644
index 000000000..92f60b18a
--- /dev/null
+++ b/build/arduino-builder-windows-1.4.2.zip.sha
@@ -0,0 +1 @@
+3c247b0eacc9d842270f7e5ad5fe901a0967fe43
diff --git a/build/build.xml b/build/build.xml
index 4e33464c1..7ec1218aa 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -99,7 +99,7 @@
 
   <property name="portable" value="false" />
 
-  <property name="ARDUINO-BUILDER-VERSION" value="1.4.1" />
+  <property name="ARDUINO-BUILDER-VERSION" value="1.4.2" />
   <property name="LIBLISTSERIAL-VERSION" value="1.4.2" />
   <property name="AVRGCC-VERSION" value="5.4.0-atmel3.6.1-arduino2" />
   <property name="AVRDUDE-VERSION" value="6.3.0-arduino14" />