diff --git a/build/arduino-builder-linux32-1.4.8.tar.bz2.sha b/build/arduino-builder-linux32-1.4.8.tar.bz2.sha
deleted file mode 100644
index 5077c2bbd..000000000
--- a/build/arduino-builder-linux32-1.4.8.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-c8dc06b5ac547910267b8c035308de3bfffc1650
diff --git a/build/arduino-builder-linux32-1.4.9.tar.bz2.sha b/build/arduino-builder-linux32-1.4.9.tar.bz2.sha
new file mode 100644
index 000000000..75f7cced8
--- /dev/null
+++ b/build/arduino-builder-linux32-1.4.9.tar.bz2.sha
@@ -0,0 +1 @@
+4fd966fbdafed20b0aa040182bbbde298e7a3285
diff --git a/build/arduino-builder-linux64-1.4.8.tar.bz2.sha b/build/arduino-builder-linux64-1.4.8.tar.bz2.sha
deleted file mode 100644
index c11fa29f8..000000000
--- a/build/arduino-builder-linux64-1.4.8.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-650dac92d827c3796ce555c9637243bbc750bec0
diff --git a/build/arduino-builder-linux64-1.4.9.tar.bz2.sha b/build/arduino-builder-linux64-1.4.9.tar.bz2.sha
new file mode 100644
index 000000000..4ad215339
--- /dev/null
+++ b/build/arduino-builder-linux64-1.4.9.tar.bz2.sha
@@ -0,0 +1 @@
+331e398f2da633674db9de418de0eb0a082cb7c1
diff --git a/build/arduino-builder-linuxaarch64-1.4.8.tar.bz2.sha b/build/arduino-builder-linuxaarch64-1.4.8.tar.bz2.sha
deleted file mode 100644
index ccb444092..000000000
--- a/build/arduino-builder-linuxaarch64-1.4.8.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-74aa70647e9bba342ea9f6f24436febc69b520f9
diff --git a/build/arduino-builder-linuxaarch64-1.4.9.tar.bz2.sha b/build/arduino-builder-linuxaarch64-1.4.9.tar.bz2.sha
new file mode 100644
index 000000000..f77ea6fe0
--- /dev/null
+++ b/build/arduino-builder-linuxaarch64-1.4.9.tar.bz2.sha
@@ -0,0 +1 @@
+65465fdaff02016014c11f8c19ef3fe2e9ea9e63
diff --git a/build/arduino-builder-linuxarm-1.4.8.tar.bz2.sha b/build/arduino-builder-linuxarm-1.4.8.tar.bz2.sha
deleted file mode 100644
index 2ccdcdeb7..000000000
--- a/build/arduino-builder-linuxarm-1.4.8.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-0e376127a01848cc50c04c8b33a5c4c3bbf6f3ab
diff --git a/build/arduino-builder-linuxarm-1.4.9.tar.bz2.sha b/build/arduino-builder-linuxarm-1.4.9.tar.bz2.sha
new file mode 100644
index 000000000..539b3cae3
--- /dev/null
+++ b/build/arduino-builder-linuxarm-1.4.9.tar.bz2.sha
@@ -0,0 +1 @@
+062bb12ac312c38d0bd9b4ffb7298094597b1e5e
diff --git a/build/arduino-builder-macosx-1.4.8.tar.bz2.sha b/build/arduino-builder-macosx-1.4.8.tar.bz2.sha
deleted file mode 100644
index f90caef53..000000000
--- a/build/arduino-builder-macosx-1.4.8.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-8a21f2f5bde1c902dfb4f699224fe800a9b403b4
diff --git a/build/arduino-builder-macosx-1.4.9.tar.bz2.sha b/build/arduino-builder-macosx-1.4.9.tar.bz2.sha
new file mode 100644
index 000000000..e4fe6a194
--- /dev/null
+++ b/build/arduino-builder-macosx-1.4.9.tar.bz2.sha
@@ -0,0 +1 @@
+9ce46797a39f7a5821f422bef31d20bba56da0da
diff --git a/build/arduino-builder-windows-1.4.8.zip.sha b/build/arduino-builder-windows-1.4.8.zip.sha
deleted file mode 100644
index 498055912..000000000
--- a/build/arduino-builder-windows-1.4.8.zip.sha
+++ /dev/null
@@ -1 +0,0 @@
-38ef778276f9660b007977121dce06bbd6cef32b
diff --git a/build/arduino-builder-windows-1.4.9.zip.sha b/build/arduino-builder-windows-1.4.9.zip.sha
new file mode 100644
index 000000000..20bc11c9c
--- /dev/null
+++ b/build/arduino-builder-windows-1.4.9.zip.sha
@@ -0,0 +1 @@
+f049d7db4c1c202a6363e9fd1894358c1e96a2d8
diff --git a/build/build.xml b/build/build.xml
index 6081d1612..eda14a61a 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -99,7 +99,7 @@
 
   <property name="portable" value="false" />
 
-  <property name="ARDUINO-BUILDER-VERSION" value="1.4.8" />
+  <property name="ARDUINO-BUILDER-VERSION" value="1.4.9" />
   <property name="LIBLISTSERIAL-VERSION" value="1.4.2" />
   <property name="AVRGCC-VERSION" value="7.3.0-atmel3.6.1-arduino5" />
   <property name="AVRDUDE-VERSION" value="6.3.0-arduino17" />