diff --git a/requirements-dev.txt b/requirements-dev.txt
index d7aad10f..36569ecb 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 black==20.8b1
 mypy==0.782
-poetry==1.1.0
+poetry==1.1.1
 pytest==6.1.1
 pytest-cov==2.10.1