diff --git a/ghc-HsYAML-aeson.spec b/ghc-HsYAML-aeson.spec
index 00ab90a..bb02559 100644
--- a/ghc-HsYAML-aeson.spec
+++ b/ghc-HsYAML-aeson.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package ghc-HsYAML-aeson
 #
-# Copyright (c) 2020 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2020 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -62,6 +62,7 @@ This package provides the Haskell %{pkg_name} library development files.
 %prep
 %setup -q -n %{pkg_name}-%{version}
 cp -p %{SOURCE1} %{pkg_name}.cabal
+cabal-tweak-dep-ver aeson '^>= 1.4.0.0' '< 2'
 
 %build
 %ghc_lib_build