diff --git a/.gitignore b/.gitignore
index c058e78..73835ed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,12 +1,2 @@
-cim_schema_2.25.0Final-Doc.zip
-cim_schema_2.25.0Final-MOFs.zip
-/cim_schema_2.29.0Final-MOFs.zip
-/cim_schema_2.29.0Final-Doc.zip
-/cim_schema_2.33.0Experimental-MOFs.zip
-/cim_schema_2.33.0Experimental-Doc.zip
-/cim_schema_2.37.0Experimental-MOFs.zip
-/cim_schema_2.37.0Experimental-Doc.zip
-/cim_schema_2.38.0Experimental-MOFs.zip
-/cim_schema_2.38.0Experimental-Doc.zip
-/cim_schema_2.43.0Experimental-MOFs.zip
-/cim_schema_2.43.0Experimental-Doc.zip
+/cim_schema_2.54.0Experimental-MOFs.zip
+/cim_schema_2.54.0Experimental-Doc.zip
diff --git a/cim-schema.spec b/cim-schema.spec
index 3a4009c..83c09c5 100644
--- a/cim-schema.spec
+++ b/cim-schema.spec
@@ -32,14 +32,14 @@
 # norootforbuild
 
 %global major 2
-%global minor 43
+%global minor 54
 %global update 0
 
 Name:           cim-schema
 Url:            http://www.dmtf.org/
 Summary:        Common Information Model (CIM) Schema
 Version:        %{major}.%{minor}.%{update}
-Release:        12%{?dist}
+Release:        1%{?dist}
 License:        DMTF
 Source0:        http://www.dmtf.org/standards/cim/cim_schema_v%{major}%{minor}%{update}/cim_schema_%{version}Experimental-MOFs.zip
 Source1:        http://www.dmtf.org/standards/cim/cim_schema_v%{major}%{minor}%{update}/cim_schema_%{version}Experimental-Doc.zip
@@ -99,6 +99,9 @@ cp -a %{SOURCE2} $RPM_BUILD_ROOT/%{_docdir}/%{name}
 %doc ../%{name}-docs/*
 
 %changelog
+* Wed Apr 21 2021 Vitezslav Crhonek <vcrhonek@redhat.com> - 2.54.0-1
+- Update to CIM Schema 2.54.0, including experimental classes
+
 * Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 2.43.0-12
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
 
diff --git a/sources b/sources
index 946634a..765dcbd 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-327d8405867e24a586d3ec0efb7ff8b8  cim_schema_2.43.0Experimental-MOFs.zip
-42bcf2ef4fed12eb5093531d894c12cf  cim_schema_2.43.0Experimental-Doc.zip
+SHA512 (cim_schema_2.54.0Experimental-MOFs.zip) = 199b6971cc813545606adc588833cc6dca5fecd1a039ec5a13957d184f1825ec09669fbf618015df24f0065d725a1ea4c2913d5d2c70099259e544ba37b35644
+SHA512 (cim_schema_2.54.0Experimental-Doc.zip) = ba475186e992fe70c6e290b6b88c8e939f333c1647ea584694999daadd4f89f57836a3c33560b7626385d7b1cde2641baaea6e38fbc1292040d10160e57f1cee