diff --git a/pkgs/applications/networking/cluster/spark/default.nix b/pkgs/applications/networking/cluster/spark/default.nix
index 7ba8a2ea1cd1..837447fe60fb 100644
--- a/pkgs/applications/networking/cluster/spark/default.nix
+++ b/pkgs/applications/networking/cluster/spark/default.nix
@@ -6,9 +6,9 @@
 
 let
   versionMap = {
-    "1.6.0" = {
+    "1.6.3" = {
                 hadoopVersion = "cdh4";
-                sparkSha256 = "19ycx1r8g82vkvzmn9wxkssmv2damrg72yfmrgzpc6xyh071g91c";
+                sparkSha256 = "00il083cjb9xqzsma2ifphq9ggichwndrj6skh2z5z9jk3z0lgyn";
               };
     "2.1.0" = {
                 hadoopVersion = "hadoop2.4";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 14d49ab16b2b..e0ef39ce64f6 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6093,7 +6093,7 @@ with pkgs;
   self = callPackage_i686 ../development/interpreters/self { };
 
   spark = spark_21;
-  spark_16 = callPackage ../applications/networking/cluster/spark { version = "1.6.0"; };
+  spark_16 = callPackage ../applications/networking/cluster/spark { version = "1.6.3"; };
   spark_21 = callPackage ../applications/networking/cluster/spark { version = "2.1.0"; };
 
   spidermonkey_1_8_5 = callPackage ../development/interpreters/spidermonkey/1.8.5.nix { };