diff --git a/poetry.spec b/poetry.spec
index aa44b31..9417a59 100644
--- a/poetry.spec
+++ b/poetry.spec
@@ -9,7 +9,7 @@ projects, ensuring you have the right stack everywhere.}
 Name:           %{pypi_name}
 Summary:        Python dependency management and packaging made easy
 Version:        1.0.3
-Release:        1%{?dist}
+Release:        2%{?dist}
 License:        MIT
 
 URL:            https://poetry.eustace.io/
@@ -34,6 +34,9 @@ Requires:       python3-%{pypi_name} = %{version}-%{release}
 %package -n     python3-%{pypi_name}
 Summary:        %{summary}
 
+# this is an optional dependency of CacheControl, but it's required by poetry
+Requires:       python3dist(lockfile)
+
 %{?python_provide:%python_provide python3-%{pypi_name}}
 
 %description -n python3-%{pypi_name} %{common_description}
@@ -66,6 +69,9 @@ Summary:        %{summary}
 
 
 %changelog
+* Wed Feb 05 2020 Fabio Valentini <decathorpe@gmail.com> - 1.0.3-2
+- Hard-code dependency on python3-lockfile.
+
 * Sun Feb 02 2020 Fabio Valentini <decathorpe@gmail.com> - 1.0.3-1
 - Update to version 1.0.3.