diff --git a/avogadro-1.1.1-python_openbabel.patch b/avogadro-1.1.1-python_openbabel.patch
deleted file mode 100644
index c819b08..0000000
--- a/avogadro-1.1.1-python_openbabel.patch
+++ /dev/null
@@ -1,14 +0,0 @@
-diff -up avogadro-1.1.1/libavogadro/src/python/CMakeLists.txt.openbabel avogadro-1.1.1/libavogadro/src/python/CMakeLists.txt
---- avogadro-1.1.1/libavogadro/src/python/CMakeLists.txt.openbabel	2013-12-06 09:50:04.000000000 -0600
-+++ avogadro-1.1.1/libavogadro/src/python/CMakeLists.txt	2016-01-25 13:50:10.469758655 -0600
-@@ -20,8 +20,8 @@ if (WIN32)
-   set_target_properties(python-module PROPERTIES SUFFIX ".pyd")
-   target_link_libraries(python-module avogadro ${PYTHON_LIBRARIES})
- else()
--  target_link_libraries(python-module stdc++ avogadro
--    ${QT_LIBRARIES} ${PYTHON_LIBRARIES} ${Boost_LIBRARIES})
-+  target_link_libraries(python-module stdc++ avogadro 
-+    ${QT_LIBRARIES} ${PYTHON_LIBRARIES} ${OPENBABEL2_LIBRARIES} ${Boost_LIBRARIES})
- endif()
- 
- # Let's try to use this instead:
diff --git a/avogadro-set_python_libpath.patch b/avogadro-set_python_libpath.patch
deleted file mode 100644
index cc39625..0000000
--- a/avogadro-set_python_libpath.patch
+++ /dev/null
@@ -1,20 +0,0 @@
---- a/libavogadro/src/extensions/CMakeLists.orig.txt	2016-06-08 16:19:45.000000000 +0200
-+++ b/libavogadro/src/extensions/CMakeLists.txt	2018-08-01 16:13:22.511491087 +0200
-@@ -76,7 +76,7 @@
-   target_link_libraries(pythonterminal ${PYTHON_LIBRARIES})
- 
-   file(GLOB python_SCRIPTS "python/*.py")
--  install(FILES ${python_SCRIPTS} DESTINATION share/libavogadro/extensionScripts)
-+  install(FILES ${python_SCRIPTS} DESTINATION ${PYTHON_LIBPATH}/libavogadro/extensionScripts)
- endif()
- 
- ### Animation
---- a/libavogadro/src/engines/CMakeLists.orig.txt	2016-06-08 16:19:45.000000000 +0200
-+++ b/libavogadro/src/engines/CMakeLists.txt	2018-08-01 16:16:03.377875970 +0200
-@@ -68,5 +68,5 @@
- 
- if(ALL_PYTHON_FOUND)
-   file(GLOB python_SCRIPTS "python/*.py")
--  install(FILES ${python_SCRIPTS} DESTINATION share/libavogadro/engineScripts)
-+  install(FILES ${python_SCRIPTS} DESTINATION ${PYTHON_LIBPATH}/libavogadro/engineScripts)
- endif()
diff --git a/avogadro.spec b/avogadro.spec
index a847405..111c026 100644
--- a/avogadro.spec
+++ b/avogadro.spec
@@ -1,10 +1,10 @@
-# Avogadro1 supports Python2 only
+# Avogadro supports Python2 only
 
 %undefine _ld_as_needed
 
 Name:           avogadro
 Version:        1.2.0
-Release:        28%{?dist}
+Release:        29%{?dist}
 Summary:        An advanced molecular editor for chemical purposes
 License:        GPLv2
 URL:            http://avogadro.openmolecules.net/
@@ -66,7 +66,7 @@ a powerful plugin architecture.
 
 %package libs
 Summary:        Shared libraries for Avogadro
-%{?_sip_api:Requires: sip-api(%{_sip_api_major}) >= %{_sip_api}}
+Requires:       python2-sip%{?_isa}
 %description libs
 This package contains the shared libraries for the
 molecular editor Avogadro.
@@ -210,6 +210,9 @@ end
 %{_datadir}/avogadro/i18n/
 
 %changelog
+* Sun Jan 19 2020 Antonio Trande <sagitter@fedoraproject.org> - 1.2.0-29
+- Remove explicit sip-api requirement
+
 * Fri Nov 15 2019 Antonio Trande <sagitter@fedoraproject.org> - 1.2.0-28
 - Fix desktop file's categories
 - Remove rpmmoved files