diff --git a/dnf-plugins-core.spec b/dnf-plugins-core.spec
index 69e8067..2737905 100644
--- a/dnf-plugins-core.spec
+++ b/dnf-plugins-core.spec
@@ -10,7 +10,7 @@
 
 Name:           dnf-plugins-core
 Version:        0.1.21
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Core Plugins for DNF
 License:        GPLv2+
 URL:            https://github.com/rpm-software-management/dnf-plugins-core
@@ -55,6 +55,7 @@ Requires:       python-hawkey >= %{hawkey_version}
 Conflicts:      %{name} <= 0.1.5
 # let the both python plugin versions be updated simultaneously
 Conflicts:      python3-%{name} < %{version}-%{release}
+Conflicts:      python-%{name} < %{version}-%{release}
 
 %description -n python2-%{name}
 Core Plugins for DNF, Python 2 interface. This package enhances DNF with builddep, copr,
@@ -77,6 +78,7 @@ Requires:       python3-hawkey >= %{hawkey_version}
 Conflicts:      %{name} <= 0.1.5
 # let the both python plugin versions be updated simultaneously
 Conflicts:      python2-%{name} < %{version}-%{release}
+Conflicts:      python-%{name} < %{version}-%{release}
 
 %description -n python3-%{name}
 Core Plugins for DNF, Python 3 interface. This package enhances DNF with builddep, copr,
@@ -150,6 +152,10 @@ PYTHONPATH=./plugins nosetests-%{python3_version} -s tests/
 %endif
 
 %changelog
+* Fri May 27 2016 Igor Gnatenko <ignatenko@redhat.com> 0.1.21-2
+- spec: explicitly conflict with python-%%{name} with different version (Igor
+  Gnatenko)
+
 * Thu May 19 2016 Igor Gnatenko <ignatenko@redhat.com> 0.1.21-1
 - doc: release notes 0.1.21 (Igor Gnatenko)
 - spec: correctly set up requirements for python subpkg (Igor Gnatenko)
diff --git a/sources b/sources
index 65e68b1..5a84db2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-9548910bd0ba2e3e2c27813f5278aaa6  dnf-plugins-core-0.1.21.tar.gz
+1ffd294beaed8403f2aafea0732da8be  dnf-plugins-core-0.1.21.tar.gz