diff --git a/pkgs/development/python-modules/poetry-core/default.nix b/pkgs/development/python-modules/poetry-core/default.nix
index 72c02b4c1e7..bec70aacca7 100644
--- a/pkgs/development/python-modules/poetry-core/default.nix
+++ b/pkgs/development/python-modules/poetry-core/default.nix
@@ -13,14 +13,14 @@
 
 buildPythonPackage rec {
   pname = "poetry-core";
-  version = "1.1.0a3";
+  version = "1.0.3";
   format = "pyproject";
 
   src = fetchFromGitHub {
     owner = "python-poetry";
     repo = pname;
     rev = version;
-    sha256 = "sha256-GlRTtnxnc4slS4q1I7UTHUYGUJkzU9ew2NpJwSX7KYA=";
+    sha256 = "07x0zagf9cfr7g3132jjd5byywkbnzpfbxjfjzpzpj70fqw70qrc";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/development/python-modules/poetry/default.nix b/pkgs/development/python-modules/poetry/default.nix
index a04f4a1d8c1..51e95efbee5 100644
--- a/pkgs/development/python-modules/poetry/default.nix
+++ b/pkgs/development/python-modules/poetry/default.nix
@@ -24,7 +24,7 @@
 
 buildPythonPackage rec {
   pname = "poetry";
-  version = "1.1.5";
+  version = "1.1.6";
   format = "pyproject";
   disabled = isPy27;
 
@@ -32,7 +32,7 @@ buildPythonPackage rec {
     owner = "python-poetry";
     repo = pname;
     rev = version;
-    sha256 = "0bv6irpscpak6pldkzrx4j12dqnpfz5h8fy5lliglizv0avh60hf";
+    sha256 = "sha256-3Nx9xuQMIho+oRjqskHL9eQGKDAWntEGZcWe7evnmNU=";
   };
 
   postPatch = ''