diff --git a/requirements.check b/requirements.check
index 291acc797..5faaf2fbc 100644
--- a/requirements.check
+++ b/requirements.check
@@ -1,7 +1,7 @@
 nose2
 mock
-# fixme: when isort 5.0 is released, switch to pypy
+# fixme: when isort 5.0 is released, switch to pypi
 git+https://github.com/dae/isort#egg=isort
-# fixme: when pylint supports isort 5.0, switch to pypy
+# fixme: when pylint supports isort 5.0, switch to pypi
 git+https://github.com/dae/pylint#egg=pylint
 black
diff --git a/requirements.txt b/requirements.txt
index a4618cd26..e9202b464 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,4 +11,7 @@ typing
 protobuf
 mypy==0.750
 mypy_protobuf
+# fixme: when maturin fixes 32 bit support, switch back to pypi
+git+https://github.com/dae/maturin#egg=maturin; sys_platform == "linux" and platform_machine != "x86_64"
+maturin; sys_platform != "linux" or platform_machine == "x86_64"