diff --git a/deps/GSL b/deps/GSL
index 849f7cea..991fa668 160000
--- a/deps/GSL
+++ b/deps/GSL
@@ -1 +1 @@
-Subproject commit 849f7ceaf7876286aa663b4f0157b4542090fe90
+Subproject commit 991fa6682e819590c695f00c6b880548e55fa914