diff --git a/python-poetry.spec b/python-poetry.spec
index d9160b4..7af9151 100644
--- a/python-poetry.spec
+++ b/python-poetry.spec
@@ -41,7 +41,7 @@ BuildRequires:  %{python_module poetry-core >= 1.7.0 with %python-poetry-core <
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 Requires:       python-build >= 1.0.3
-Requires:       python-poetry-core >= 1.7.0
+Requires:       python-poetry-core = 1.8.1
 Requires:       python-poetry-plugin-export >= 1.6.0
 # SECTION cachecontrol[filecache]
 Requires:       python-CacheControl >= 0.13