diff --git a/maven-model-builder/src/main/java/org/apache/maven/model/validation/DefaultModelValidator.java b/maven-model-builder/src/main/java/org/apache/maven/model/validation/DefaultModelValidator.java
index 1f1a7ab572..f4d7369c88 100644
--- a/maven-model-builder/src/main/java/org/apache/maven/model/validation/DefaultModelValidator.java
+++ b/maven-model-builder/src/main/java/org/apache/maven/model/validation/DefaultModelValidator.java
@@ -74,6 +74,8 @@ import org.codehaus.plexus.util.StringUtils;
 @Named
 @Singleton
 public class DefaultModelValidator implements ModelValidator {
+    public static final String BUILD_ALLOW_EXPRESSION_IN_EFFECTIVE_PROJECT_VERSION =
+            "maven.build.allowExpressionInEffectiveProjectVersion";
 
     private static final Pattern CI_FRIENDLY_EXPRESSION = Pattern.compile("\\$\\{(.+?)}");
     private static final Pattern EXPRESSION_PROJECT_NAME_PATTERN = Pattern.compile("\\$\\{(project.+?)}");
@@ -506,6 +508,21 @@ public class DefaultModelValidator implements ModelValidator {
             validateBannedCharacters(
                     EMPTY, "version", problems, errOn31, Version.V20, m.getVersion(), null, m, ILLEGAL_VERSION_CHARS);
             validate20ProperSnapshotVersion("version", problems, errOn31, Version.V20, m.getVersion(), null, m);
+            if (hasExpression(m.getVersion())) {
+                Severity versionExpressionSeverity = Severity.ERROR;
+                if (Boolean.parseBoolean(
+                        m.getProperties().getProperty(BUILD_ALLOW_EXPRESSION_IN_EFFECTIVE_PROJECT_VERSION))) {
+                    versionExpressionSeverity = Severity.WARNING;
+                }
+                addViolation(
+                        problems,
+                        versionExpressionSeverity,
+                        Version.V20,
+                        "version",
+                        null,
+                        "must be a constant version but is '" + m.getVersion() + "'.",
+                        m);
+            }
 
             Build build = m.getBuild();
             if (build != null) {