diff --git a/pom/src/plugin-resources/xsd/pom-strict-3.xsd b/pom/src/plugin-resources/xsd/pom-strict-3.xsd
index 4f1045e0..084f3bc2 100644
--- a/pom/src/plugin-resources/xsd/pom-strict-3.xsd
+++ b/pom/src/plugin-resources/xsd/pom-strict-3.xsd
@@ -77,7 +77,7 @@
 
       </xs:element>
 
-      <xs:element minOccurs="0" name="id" type="xs:string">
+      <xs:element name="id" type="xs:string">
         <xs:annotation>
           <xs:documentation source="version">3.0.0</xs:documentation>
 
@@ -114,7 +114,7 @@
         </xs:annotation>
       </xs:element>
 
-      <xs:element minOccurs="0" name="name" type="xs:string">
+      <xs:element name="name" type="xs:string">
         <xs:annotation>
           <xs:documentation source="version">3.0.0+</xs:documentation>
 
@@ -125,7 +125,7 @@
         </xs:annotation>
       </xs:element>
 
-      <xs:element minOccurs="1" name="currentVersion" type="xs:string">
+      <xs:element name="currentVersion" type="xs:string">
         <xs:annotation>
           <xs:documentation source="version">3.0.0</xs:documentation>
 
@@ -195,7 +195,7 @@
         </xs:annotation>
       </xs:element>
 
-      <xs:element minOccurs="0" name="inceptionYear" type="xs:string">
+      <xs:element minOccurs="1" name="inceptionYear" type="xs:string">
         <xs:annotation>
           <xs:documentation source="version">3.0.0+</xs:documentation>