diff --git a/pkgs/development/libraries/folly/default.nix b/pkgs/development/libraries/folly/default.nix
index 78e32192fb4c..3fba3db7a338 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 = "2019.06.17.00";
+  version = "2019.07.22.00";
 
   src = fetchFromGitHub {
     owner = "facebook";
     repo = "folly";
     rev = "v${version}";
-    sha256 = "0v639yqk029c585x3140rdfbz3xrdjwc858bqfy4yv31pyrn608l";
+    sha256 = "1vh5jrqz0lp6rc5fr6vk3yqss5vaycdsyap12mcr0cniv419fdxa";
   };
 
   nativeBuildInputs = [ cmake ];