diff --git a/pkgs/development/libraries/sundials/default.nix b/pkgs/development/libraries/sundials/default.nix
index 2a5acc31382..8fe2431d142 100644
--- a/pkgs/development/libraries/sundials/default.nix
+++ b/pkgs/development/libraries/sundials/default.nix
@@ -3,12 +3,12 @@
 stdenv.mkDerivation rec {
 
   pname = "sundials";
-  version = "4.0.0";
+  version = "4.0.1";
   name = "${pname}-${version}";
 
   src = fetchurl {
     url = "https://computation.llnl.gov/projects/${pname}/download/${pname}-${version}.tar.gz";
-    sha256 = "06cspmhx9qn7x722lmy9q2jr80hnnv2h7n54da7y5m951p1xfgcm";
+    sha256 = "1m5f2glxmgc6imjr0yqqp448r8q3kvsfp8dxxn83k00fcb40kr19";
   };
 
   preConfigure = ''