diff --git a/srcpkgs/vapoursynth/template b/srcpkgs/vapoursynth/template
index 8508ca67110..3d0692e631d 100644
--- a/srcpkgs/vapoursynth/template
+++ b/srcpkgs/vapoursynth/template
@@ -1,8 +1,11 @@
 # Template file for 'vapoursynth'
 pkgname=vapoursynth
 version=R52
-revision=2
+revision=3
 build_style=gnu-configure
+# configure checks sys.version[:3] for Python versioning, so 3.10 becomes 3.1;
+# until this is fixed upstream, manually define am_cv_python_version to circumvent
+configure_args="am_cv_python_version=${py3_ver}"
 hostmakedepends="automake libtool nasm pkg-config python3-Cython"
 makedepends="ffmpeg-devel python3-devel zimg-devel libass-devel libmagick-devel
  libxml2-devel"