diff --git a/cura-fdm-materials.spec b/cura-fdm-materials.spec
index 9a8473c..4c2139e 100644
--- a/cura-fdm-materials.spec
+++ b/cura-fdm-materials.spec
@@ -1,5 +1,5 @@
 Name:           cura-fdm-materials
-Version:        5.6.0
+Version:        5.4.0
 Release:        %autorelease
 Summary:        Cura FDM Material database
 
diff --git a/sources b/sources
index ef2fd7c..5009d3c 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (cura-fdm-materials-5.6.0.tar.gz) = f29538bcabc11dec2e562e6b7fe4472e79a7f597430ed7b072d9b55706e9ae219af918df1e5165e9a6bdfdbd3821dc2fd7ccefb62b7846418307102fb5b9d273
+SHA512 (cura-fdm-materials-5.4.0.tar.gz) = 9cf2b1b9ac635e987f0c1679b1e3153b5acd853257b9e175fb6ffff02dac9ea630088fa864c2c3908a293fb845b6f3f1c7e9bbf46e63d17d9fdbe4525d2cf5d6