diff --git a/Formula/vapoursynth-imwri.rb b/Formula/vapoursynth-imwri.rb
index 0c8313defc..7151e0af53 100644
--- a/Formula/vapoursynth-imwri.rb
+++ b/Formula/vapoursynth-imwri.rb
@@ -1,8 +1,8 @@
 class VapoursynthImwri < Formula
   desc "VapourSynth filters - ImageMagick HDRI writer/reader"
   homepage "http://www.vapoursynth.com"
-  url "https://github.com/vapoursynth/vapoursynth/archive/R45.1.tar.gz"
-  sha256 "4f43e5bb8c4817fdebe572d82febe4abac892918c54e1cb71aa6f6eb3677a877"
+  url "https://github.com/vapoursynth/vapoursynth/archive/R46.tar.gz"
+  sha256 "e0b6e538cc54a021935e89a88c5fdae23c018873413501785c80b343c455fe7f"
   head "https://github.com/vapoursynth/vapoursynth.git"
 
   bottle do