diff --git a/requirements.in b/requirements.in
index a864335..1d83ec8 100644
--- a/requirements.in
+++ b/requirements.in
@@ -36,3 +36,4 @@
 importlib ; python_version < '2.7'
 ordereddict ; python_version < '2.7'
 total-ordering ; python_version < '2.7'  # only one version on pypi
+wheel<=0.29.0 ; python_version < '2.7'
diff --git a/requirements.txt b/requirements.txt
index ea97922..bcc5296 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@
 # This file is autogenerated by pip-compile
 # To update, run:
 #
-#    pip-compile --output-file ./requirements.txt ./requirements.in
+#    pip-compile --output-file requirements.txt requirements.in
 #
 appdirs==1.4.3            # via setuptools
 backports.shutil_get_terminal_size==1.0.0
@@ -35,7 +35,7 @@
 sqlalchemy==1.1.6
 total-ordering==0.1.0 ; python_version < "2.7"
 wagon==0.6.0
-wheel==0.29.0             # via wagon
+wheel==0.29.0 ; python_version < "2.7"
 
 # The following packages are considered to be unsafe in a requirements file:
 setuptools==35.0.2