diff --git a/hibernate-core/src/main/java/org/hibernate/engine/query/spi/AbstractParameterDescriptor.java b/hibernate-core/src/main/java/org/hibernate/engine/query/spi/AbstractParameterDescriptor.java
index aab0351faa..62e025b6df 100644
--- a/hibernate-core/src/main/java/org/hibernate/engine/query/spi/AbstractParameterDescriptor.java
+++ b/hibernate-core/src/main/java/org/hibernate/engine/query/spi/AbstractParameterDescriptor.java
@@ -6,12 +6,16 @@
  */
 package org.hibernate.engine.query.spi;
 
+import org.hibernate.Incubating;
 import org.hibernate.query.QueryParameter;
 import org.hibernate.type.Type;
 
 /**
+ * NOTE: Consider this contract (and its sub-contracts) as incubating as we transition to 6.0 and SQM
+ *
  * @author Steve Ebersole
  */
+@Incubating
 public abstract class AbstractParameterDescriptor implements QueryParameter {
 	private final int[] sourceLocations;
 
diff --git a/hibernate-core/src/main/java/org/hibernate/query/procedure/ProcedureParameter.java b/hibernate-core/src/main/java/org/hibernate/query/procedure/ProcedureParameter.java
index 050608d0ab..0bd9c4a2fd 100644
--- a/hibernate-core/src/main/java/org/hibernate/query/procedure/ProcedureParameter.java
+++ b/hibernate-core/src/main/java/org/hibernate/query/procedure/ProcedureParameter.java
@@ -8,12 +8,16 @@ package org.hibernate.query.procedure;
 
 import javax.persistence.ParameterMode;
 
+import org.hibernate.Incubating;
 import org.hibernate.procedure.spi.ParameterRegistrationImplementor;
 import org.hibernate.query.QueryParameter;
 
 /**
+ * NOTE: Consider this contract (and its sub-contracts) as incubating as we transition to 6.0 and SQM
+ *
  * @author Steve Ebersole
  */
+@Incubating
 public interface ProcedureParameter<T> extends QueryParameter<T> {
 	/**
 	 * Retrieves the parameter "mode".  Only really pertinent in regards to procedure/function calls.
diff --git a/hibernate-core/src/main/java/org/hibernate/query/procedure/spi/ProcedureParameterImplementor.java b/hibernate-core/src/main/java/org/hibernate/query/procedure/spi/ProcedureParameterImplementor.java
index f671e05a2e..a5558058ff 100644
--- a/hibernate-core/src/main/java/org/hibernate/query/procedure/spi/ProcedureParameterImplementor.java
+++ b/hibernate-core/src/main/java/org/hibernate/query/procedure/spi/ProcedureParameterImplementor.java
@@ -6,11 +6,15 @@
  */
 package org.hibernate.query.procedure.spi;
 
+import org.hibernate.Incubating;
 import org.hibernate.procedure.spi.ParameterRegistrationImplementor;
 import org.hibernate.query.procedure.ProcedureParameter;
 
 /**
+ * NOTE: Consider this contract (and its sub-contracts) as incubating as we transition to 6.0 and SQM
+ *
  * @author Steve Ebersole
  */
+@Incubating
 public interface ProcedureParameterImplementor<T> extends ProcedureParameter<T>, ParameterRegistrationImplementor<T> {
 }