diff --git a/pkgs/development/libraries/science/math/blis/default.nix b/pkgs/development/libraries/science/math/blis/default.nix
index c32379f26592..b31de4b84a70 100644
--- a/pkgs/development/libraries/science/math/blis/default.nix
+++ b/pkgs/development/libraries/science/math/blis/default.nix
@@ -17,13 +17,13 @@ let
   blasIntSize = if blas64 then "64" else "32";
 in stdenv.mkDerivation rec {
   pname = "blis";
-  version = "0.9.0";
+  version = "1.0";
 
   src = fetchFromGitHub {
     owner = "flame";
     repo = "blis";
     rev = version;
-    sha256 = "sha256-1aHIdt5wCDrT1hBPnaUVThwjwDkJQ0G0+tao2iFXYpM=";
+    sha256 = "sha256-lAo6C34QQvXr3LmcsnTp4+Imi/lKxzcWu3EJkVgLvDI=";
   };
 
   inherit blas64;