diff --git a/build/linux/avr-toolchain-linux32-gcc-4.8.1.zip.sha b/build/linux/avr-toolchain-linux32-gcc-4.8.1.zip.sha
index 2e7f8bdf8..eef9b3ba2 100644
--- a/build/linux/avr-toolchain-linux32-gcc-4.8.1.zip.sha
+++ b/build/linux/avr-toolchain-linux32-gcc-4.8.1.zip.sha
@@ -1 +1 @@
-c8852426fde9f1efa92cea0b900030b5bfceee4f
+026d473d8aacab743bb8c5a49f20ae6992c0de10
diff --git a/build/linux/avr-toolchain-linux64-gcc-4.8.1.zip.sha b/build/linux/avr-toolchain-linux64-gcc-4.8.1.zip.sha
index c9a15b051..007b484e4 100644
--- a/build/linux/avr-toolchain-linux64-gcc-4.8.1.zip.sha
+++ b/build/linux/avr-toolchain-linux64-gcc-4.8.1.zip.sha
@@ -1 +1 @@
-6a03437245cf5f1a6b2c776ef18a83baecfc33fd
+e95ac40798b790dbb906a549c5e7ffad8bf29794
diff --git a/build/macosx/avr-toolchain-mac32-gcc-4.8.1.zip.sha b/build/macosx/avr-toolchain-mac32-gcc-4.8.1.zip.sha
index b348a3316..dfb83fae9 100644
--- a/build/macosx/avr-toolchain-mac32-gcc-4.8.1.zip.sha
+++ b/build/macosx/avr-toolchain-mac32-gcc-4.8.1.zip.sha
@@ -1 +1 @@
-165fab6b30d2075c1642b835efc081e4502a8a32
+8c0a2c9bb892156b2251a46e59d4380dd28b549a
diff --git a/build/windows/avr-toolchain-win32-gcc-4.8.1.zip.sha b/build/windows/avr-toolchain-win32-gcc-4.8.1.zip.sha
index 9421ce881..aa3af9236 100644
--- a/build/windows/avr-toolchain-win32-gcc-4.8.1.zip.sha
+++ b/build/windows/avr-toolchain-win32-gcc-4.8.1.zip.sha
@@ -1 +1 @@
-34e8676d72e35c221f29fedd0142c1942b78b1d3
+62640c94fa6409afcd72455f7618606180379889