diff --git a/src/main/java/org/apache/commons/math3/analysis/DifferentiableMultivariateFunction.java b/src/main/java/org/apache/commons/math3/analysis/DifferentiableMultivariateFunction.java
index fbb634ef1..2aa45c36f 100644
--- a/src/main/java/org/apache/commons/math3/analysis/DifferentiableMultivariateFunction.java
+++ b/src/main/java/org/apache/commons/math3/analysis/DifferentiableMultivariateFunction.java
@@ -24,6 +24,7 @@ package org.apache.commons.math3.analysis;
  * @since 2.0
  * @deprecated as of 3.1 replaced by {@link org.apache.commons.math3.analysis.differentiation.MultivariateDifferentiableFunction}
  */
+@Deprecated
 public interface DifferentiableMultivariateFunction extends MultivariateFunction {
 
     /**
diff --git a/src/main/java/org/apache/commons/math3/analysis/DifferentiableMultivariateVectorFunction.java b/src/main/java/org/apache/commons/math3/analysis/DifferentiableMultivariateVectorFunction.java
index 3e75d1542..b9a20050d 100644
--- a/src/main/java/org/apache/commons/math3/analysis/DifferentiableMultivariateVectorFunction.java
+++ b/src/main/java/org/apache/commons/math3/analysis/DifferentiableMultivariateVectorFunction.java
@@ -24,6 +24,7 @@ package org.apache.commons.math3.analysis;
  * @since 2.0
  * @deprecated as of 3.1 replaced by {@link org.apache.commons.math3.analysis.differentiation.MultivariateDifferentiableVectorFunction}
  */
+@Deprecated
 public interface DifferentiableMultivariateVectorFunction
     extends MultivariateVectorFunction {