diff --git a/debian/control b/debian/control
index 87de23c1..1cdb1056 100644
--- a/debian/control
+++ b/debian/control
@@ -87,6 +87,7 @@ Testsuite: autopkgtest-pkg-go
 Package: aptly
 Architecture: any
 Depends: ${misc:Depends}, ${shlibs:Depends}, bzip2, xz-utils, gpgv, gpg
+Conflicts: gnupg1, gpgv1
 Suggests: graphviz
 Built-Using: ${misc:Static-Built-Using}, ${misc:Built-Using}
 Description: Swiss army knife for Debian repository management - main package