diff --git a/pkgs/development/libraries/vapoursynth/default.nix b/pkgs/development/libraries/vapoursynth/default.nix
index 684982e5364f..652833a39367 100644
--- a/pkgs/development/libraries/vapoursynth/default.nix
+++ b/pkgs/development/libraries/vapoursynth/default.nix
@@ -6,13 +6,13 @@
 
 stdenv.mkDerivation rec {
   pname = "vapoursynth";
-  version = "63";
+  version = "64";
 
   src = fetchFromGitHub {
     owner  = "vapoursynth";
     repo   = "vapoursynth";
     rev    = "R${version}";
-    sha256 = "sha256-6ITmzz1xJN/UnzVl0aAO8VNs0Go8zGcswwGpJUwwLB8=";
+    sha256 = "sha256-EdIe0hWsx0W9+03O0Avk4DV2jKv8s4wGAKk0NxIAuTU=";
   };
 
   patches = [