diff --git a/pkgs/tools/backup/duplicity/default.nix b/pkgs/tools/backup/duplicity/default.nix
index c12cc1198c9..74527a89114 100644
--- a/pkgs/tools/backup/duplicity/default.nix
+++ b/pkgs/tools/backup/duplicity/default.nix
@@ -49,6 +49,7 @@ pythonPackages.buildPythonApplication rec {
   propagatedBuildInputs = with pythonPackages; [
     b2sdk
     boto
+    boto3
     cffi
     cryptography
     ecdsa