diff --git a/srcpkgs/python3-grpcio-tools/template b/srcpkgs/python3-grpcio-tools/template
index 155fac164fb..2222267766f 100644
--- a/srcpkgs/python3-grpcio-tools/template
+++ b/srcpkgs/python3-grpcio-tools/template
@@ -1,10 +1,10 @@
 # Template file for 'python3-grpcio-tools'
 pkgname=python3-grpcio-tools
 version=1.49.1
-revision=1
+revision=2
 wrksrc="${pkgname#*-}-${version}"
 build_style=python3-module
-hostmakedepends="python3-setuptools"
+hostmakedepends="python3-setuptools python3-Cython"
 makedepends="python3-devel"
 depends="python3-protobuf python3-grpcio"
 checkdepends="python3-pytest $depends"
@@ -15,6 +15,8 @@ homepage="https://grpc.io"
 distfiles="${PYPI_SITE}/g/grpcio-tools/grpcio-tools-${version}.tar.gz"
 checksum=84cc64e5b46bad43d5d7bd2fd772b656eba0366961187a847e908e2cb735db91
 
+export GRPC_PYTHON_BUILD_WITH_CYTHON=1
+
 if [ "$XBPS_TARGET_NO_ATOMIC8" ]; then
 	makedepends+=" libatomic-devel"
 fi