diff --git a/build/arduino-builder-linux32-1.5.4.tar.bz2.sha b/build/arduino-builder-linux32-1.5.4.tar.bz2.sha
deleted file mode 100644
index fca7743f6..000000000
--- a/build/arduino-builder-linux32-1.5.4.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-814152163d45804b3300b9b2cea751502ac9840f
diff --git a/build/arduino-builder-linux32-1.5.5.tar.bz2.sha b/build/arduino-builder-linux32-1.5.5.tar.bz2.sha
new file mode 100644
index 000000000..39abd188b
--- /dev/null
+++ b/build/arduino-builder-linux32-1.5.5.tar.bz2.sha
@@ -0,0 +1 @@
+9cb443b7bf67fc6613982f8a13f171b361ca37cb
diff --git a/build/arduino-builder-linux64-1.5.4.tar.bz2.sha b/build/arduino-builder-linux64-1.5.4.tar.bz2.sha
deleted file mode 100644
index be7cdc8b2..000000000
--- a/build/arduino-builder-linux64-1.5.4.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-2a87816eb0389425ca44e05285c5ce2a03b018d0
diff --git a/build/arduino-builder-linux64-1.5.5.tar.bz2.sha b/build/arduino-builder-linux64-1.5.5.tar.bz2.sha
new file mode 100644
index 000000000..ef14677ca
--- /dev/null
+++ b/build/arduino-builder-linux64-1.5.5.tar.bz2.sha
@@ -0,0 +1 @@
+6a651845db81c54d888253e890105fe60cfa0f40
diff --git a/build/arduino-builder-linuxaarch64-1.5.4.tar.bz2.sha b/build/arduino-builder-linuxaarch64-1.5.4.tar.bz2.sha
deleted file mode 100644
index a6cd7d913..000000000
--- a/build/arduino-builder-linuxaarch64-1.5.4.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-81186930ec4dcaef24b89707bcf13cbfe9262b61
diff --git a/build/arduino-builder-linuxaarch64-1.5.5.tar.bz2.sha b/build/arduino-builder-linuxaarch64-1.5.5.tar.bz2.sha
new file mode 100644
index 000000000..4582373a6
--- /dev/null
+++ b/build/arduino-builder-linuxaarch64-1.5.5.tar.bz2.sha
@@ -0,0 +1 @@
+eb03f430901080e1f251d432f1e8615c4229f912
diff --git a/build/arduino-builder-linuxarm-1.5.4.tar.bz2.sha b/build/arduino-builder-linuxarm-1.5.4.tar.bz2.sha
deleted file mode 100644
index a4f20a2c2..000000000
--- a/build/arduino-builder-linuxarm-1.5.4.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-b27b5228d8dbcbe68659a83b0f78be429039343d
diff --git a/build/arduino-builder-linuxarm-1.5.5.tar.bz2.sha b/build/arduino-builder-linuxarm-1.5.5.tar.bz2.sha
new file mode 100644
index 000000000..25c78429a
--- /dev/null
+++ b/build/arduino-builder-linuxarm-1.5.5.tar.bz2.sha
@@ -0,0 +1 @@
+d7e76a71f9760514ab72c368452e6c70cc4523f6
diff --git a/build/arduino-builder-macosx-1.5.4-signed.tar.bz2.sha b/build/arduino-builder-macosx-1.5.4-signed.tar.bz2.sha
deleted file mode 100644
index 35e13574f..000000000
--- a/build/arduino-builder-macosx-1.5.4-signed.tar.bz2.sha
+++ /dev/null
@@ -1 +0,0 @@
-b609b56c06dfe92e00fd4a350db9410e59d4a5b2
diff --git a/build/arduino-builder-macosx-1.5.5-signed.tar.bz2.sha b/build/arduino-builder-macosx-1.5.5-signed.tar.bz2.sha
new file mode 100644
index 000000000..51140b6ff
--- /dev/null
+++ b/build/arduino-builder-macosx-1.5.5-signed.tar.bz2.sha
@@ -0,0 +1 @@
+4492b894f11cfe855e34e1bd36052abd44fb8554
diff --git a/build/arduino-builder-windows-1.5.4.zip.sha b/build/arduino-builder-windows-1.5.4.zip.sha
deleted file mode 100644
index b1a09de68..000000000
--- a/build/arduino-builder-windows-1.5.4.zip.sha
+++ /dev/null
@@ -1 +0,0 @@
-3df7a6bd103cad1295f31007137336cb4bbe92d8
diff --git a/build/arduino-builder-windows-1.5.5.zip.sha b/build/arduino-builder-windows-1.5.5.zip.sha
new file mode 100644
index 000000000..582164e96
--- /dev/null
+++ b/build/arduino-builder-windows-1.5.5.zip.sha
@@ -0,0 +1 @@
+e91531a93b209a7664d009e51b6358dbba77d966
diff --git a/build/build.xml b/build/build.xml
index a5f974ef4..9a6ba32b5 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -99,7 +99,7 @@
 
   <property name="portable" value="false" />
 
-  <property name="ARDUINO-BUILDER-VERSION" value="1.5.4" />
+  <property name="ARDUINO-BUILDER-VERSION" value="1.5.5" />
   <property name="LIBLISTSERIAL-VERSION" value="1.4.2-2" />
   <property name="AVRGCC-VERSION" value="7.3.0-atmel3.6.1-arduino7" />
   <property name="AVRDUDE-VERSION" value="6.3.0-arduino17" />