diff --git a/packages/toolchain/math/cloog-ppl/url b/packages/toolchain/math/cloog-ppl/url
index da00553641..2a6989e06d 100644
--- a/packages/toolchain/math/cloog-ppl/url
+++ b/packages/toolchain/math/cloog-ppl/url
@@ -1 +1 @@
-ftp://gcc.gnu.org/pub/gcc/infrastructure/cloog-ppl-0.15.10.tar.gz
+ftp://gcc.gnu.org/pub/gcc/infrastructure/cloog-ppl-0.15.9.tar.gz