diff --git a/.github/workflows/build.sh b/.github/workflows/build.sh
index 6844b59f2..ec8d89dde 100755
--- a/.github/workflows/build.sh
+++ b/.github/workflows/build.sh
@@ -17,8 +17,6 @@ fi
 echo "::group::Install a virtualenv"
   source multibuild/common_utils.sh
   source multibuild/travis_steps.sh
-  # can't use default 7.3.1 on macOS due to https://foss.heptapod.net/pypy/pypy/-/issues/3229
-  LATEST_PP_7p3=7.3.3
   python3 -m pip install virtualenv
   before_install
 echo "::endgroup::"
diff --git a/multibuild b/multibuild
index 2bf2b360f..63c1418ea 160000
--- a/multibuild
+++ b/multibuild
@@ -1 +1 @@
-Subproject commit 2bf2b360f084aaa4b166935c3bd279e2e842f6ff
+Subproject commit 63c1418ea5236f2586007c5397dab1d99d4cf1dd