diff --git a/pkg/configuration/user/casc/casc.go b/pkg/configuration/user/casc/casc.go
index 0aa40235..0d06e284 100644
--- a/pkg/configuration/user/casc/casc.go
+++ b/pkg/configuration/user/casc/casc.go
@@ -45,29 +45,15 @@ func (c *configurationAsCode) Ensure(jenkins *v1alpha2.Jenkins) (requeue bool, e
 }
 
 const applyConfigurationAsCodeGroovyScriptFmt = `
-import hudson.util.VersionNumber
-
 String[] configContent = ['''%s''']
+
 def configSb = new StringBuffer()
 for (int i=0; i<configContent.size(); i++) {
     configSb << configContent[i]
 }
 
 def stream = new ByteArrayInputStream(configSb.toString().getBytes('UTF-8'))
-
-def plugin = jenkins.model.Jenkins.instance.getPluginManager().whichPlugin(io.jenkins.plugins.casc.ConfigurationAsCode)
-def version = plugin.getVersionNumber()
-
-def source
-
-switch (version) {
-	case { it.isNewerThanOrEqualTo(new VersionNumber("1.41")) }:
-		source = new io.jenkins.plugins.casc.yaml.YamlSource(stream)
-		break
-	default:
-		source = new io.jenkins.plugins.casc.yaml.YamlSource(stream, io.jenkins.plugins.casc.yaml.YamlSource.READ_FROM_INPUTSTREAM)
-		break
-	}
+def source = io.jenkins.plugins.casc.yaml.YamlSource.of(stream)
 
 io.jenkins.plugins.casc.ConfigurationAsCode.get().configureWith(source)
 `