diff --git a/deps/GSL b/deps/GSL
index 1683d87a..991fa668 160000
--- a/deps/GSL
+++ b/deps/GSL
@@ -1 +1 @@
-Subproject commit 1683d87a3f45dff1817e858dbaf006e5ff84e784
+Subproject commit 991fa6682e819590c695f00c6b880548e55fa914