diff --git a/pkgs/development/libraries/folly/default.nix b/pkgs/development/libraries/folly/default.nix
index 75335f08545..ccf2d6d0585 100644
--- a/pkgs/development/libraries/folly/default.nix
+++ b/pkgs/development/libraries/folly/default.nix
@@ -3,13 +3,13 @@
 
 stdenv.mkDerivation rec {
   name = "folly-${version}";
-  version = "2018.06.25.00";
+  version = "2018.07.09.00";
 
   src = fetchFromGitHub {
     owner = "facebook";
     repo = "folly";
     rev = "v${version}";
-    sha256 = "0i0c2130xjrpzf5k29j09ckl1nc9ab2hapf5l6004axq6v1kw9sa";
+    sha256 = "08irwa2pb3f2gnk31rq31jjrqk2xxx0a0m72gf0bsv2w9fgn5sfm";
   };
 
   nativeBuildInputs = [ autoreconfHook python pkgconfig ];