diff --git a/pkgs/development/compilers/sagittarius-scheme/default.nix b/pkgs/development/compilers/sagittarius-scheme/default.nix
index 5cac2a8457d..7f48108314b 100644
--- a/pkgs/development/compilers/sagittarius-scheme/default.nix
+++ b/pkgs/development/compilers/sagittarius-scheme/default.nix
@@ -16,10 +16,10 @@ let platformLdLibraryPath = if stdenv.isDarwin then "DYLD_FALLBACK_LIBRARY_PATH"
 in
 stdenv.mkDerivation rec {
   pname = "sagittarius-scheme";
-  version = "0.9.8";
+  version = "0.9.9";
   src = fetchurl {
     url = "https://bitbucket.org/ktakashi/${pname}/downloads/sagittarius-${version}.tar.gz";
-    sha256 = "sha256-CdnBpTq+c04JdipfhIiI8EkVFsCc00Gh+cA5zYENMqI=";
+    sha256 = "sha256-UB7Lfyc2afTIVW5SIiHxXi2wyoVC2Q2ClTkSOQ6UmPg=";
   };
   preBuild = ''
            # since we lack rpath during build, need to explicitly add build path