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 eef9b3ba2..d9d2abaef 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 @@
-026d473d8aacab743bb8c5a49f20ae6992c0de10
+532f31624a22d4b25813c04b2761ecf3814acecf
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 007b484e4..dc7e306f4 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 @@
-e95ac40798b790dbb906a549c5e7ffad8bf29794
+f5cacd4ffe71802c0c269132dcb8d29290c54fbc
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 dfb83fae9..18a35d3ed 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 @@
-8c0a2c9bb892156b2251a46e59d4380dd28b549a
+fa419cbec48bdef8f0945b718a809f264c750df4
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 aa3af9236..30922d18f 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 @@
-62640c94fa6409afcd72455f7618606180379889
+b2ff1de8622322e3a54342fd532af5099dfda376