diff --git a/protobuf.changes b/protobuf.changes
index 633582c..0cb18a4 100644
--- a/protobuf.changes
+++ b/protobuf.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Jun 10 15:32:29 UTC 2020 - Rolf Krahl <rolf@rotkraut.de>
+
+- Python: Add requirement on python-six
+
 -------------------------------------------------------------------
 Fri Mar  6 10:05:22 UTC 2020 - Nico Kruber <nico.kruber@gmail.com>
 
diff --git a/protobuf.spec b/protobuf.spec
index 2f58b9f..d565aa7 100644
--- a/protobuf.spec
+++ b/protobuf.spec
@@ -129,6 +129,7 @@ Summary:        Python2 Bindings for Google Protocol Buffers
 Group:          Development/Libraries/Python
 Provides:       python-%{name} = %{version}
 Obsoletes:      python-%{name} < %{version}
+Requires:       python2-six >= 1.9
 
 %description -n python2-%{name}
 This package contains the Python bindings for Google Protocol Buffers.
@@ -136,6 +137,7 @@ This package contains the Python bindings for Google Protocol Buffers.
 %package -n python3-%{name}
 Summary:        Python3 Bindings for Google Protocol Buffers
 Group:          Development/Libraries/Python
+Requires:       python3-six >= 1.9
 
 %description -n python3-%{name}
 This package contains the Python bindings for Google Protocol Buffers.