diff --git a/pkgs/development/libraries/nss/default.nix b/pkgs/development/libraries/nss/default.nix
index 3089e6da23a..8a3de28b784 100644
--- a/pkgs/development/libraries/nss/default.nix
+++ b/pkgs/development/libraries/nss/default.nix
@@ -8,11 +8,11 @@ let
 
 in stdenv.mkDerivation rec {
   name = "nss-${version}";
-  version = "3.38";
+  version = "3.39";
 
   src = fetchurl {
-    url = "mirror://mozilla/security/nss/releases/NSS_3_38_RTM/src/${name}.tar.gz";
-    sha256 = "0qigcy3d169cf67jzv3rbai0m6dn34vp8h2z696mz4yn10y3sr1c";
+    url = "mirror://mozilla/security/nss/releases/NSS_3_39_RTM/src/${name}.tar.gz";
+    sha256 = "0jw6qlfl2g47hhx056nvnj6h92bk3sn46hy3ig61a911dzblvrkb";
   };
 
   buildInputs = [ perl zlib sqlite ]
@@ -42,7 +42,7 @@ in stdenv.mkDerivation rec {
   preConfigure = "cd nss";
 
   makeFlags = [
-    "NSPR_INCLUDE_DIR=${nspr.dev}/include/nspr"
+    "NSPR_INCLUDE_DIR=${nspr.dev}/include"
     "NSPR_LIB_DIR=${nspr.out}/lib"
     "NSDISTMODE=copy"
     "BUILD_OPT=1"