diff --git a/testing/py3-grpcio/APKBUILD b/testing/py3-grpcio/APKBUILD
index 885cd6c4867..1d17c27ed0a 100644
--- a/testing/py3-grpcio/APKBUILD
+++ b/testing/py3-grpcio/APKBUILD
@@ -7,7 +7,7 @@ pkgdesc="gRPC Python HTTP/2-based RPC framework"
 url="https://grpc.io"
 arch="all"
 license="Apache-2.0"
-makedepends="python3-dev py3-setuptools py3-six cython3 zlib-dev openssl-dev
+makedepends="python3-dev py3-setuptools py3-six cython zlib-dev openssl-dev
 	c-ares-dev"
 options="!check" # tests depend upon bazel
 source="grpc-$pkgver.tar.gz::https://github.com/grpc/grpc/archive/v$pkgver.tar.gz"