diff --git a/src/test/java/org/apache/commons/lang3/CharSequenceUtilsTest.java b/src/test/java/org/apache/commons/lang3/CharSequenceUtilsTest.java
index e68c4068f..bb76dab6b 100644
--- a/src/test/java/org/apache/commons/lang3/CharSequenceUtilsTest.java
+++ b/src/test/java/org/apache/commons/lang3/CharSequenceUtilsTest.java
@@ -24,7 +24,7 @@
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Modifier;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 
 import org.junit.Test;
 
diff --git a/src/test/java/org/apache/commons/lang3/SystemUtilsTest.java b/src/test/java/org/apache/commons/lang3/SystemUtilsTest.java
index 8622edb8c..0a683afd6 100644
--- a/src/test/java/org/apache/commons/lang3/SystemUtilsTest.java
+++ b/src/test/java/org/apache/commons/lang3/SystemUtilsTest.java
@@ -28,7 +28,7 @@
 import java.lang.reflect.Modifier;
 import java.util.Locale;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 
 /**
  * Unit tests {@link org.apache.commons.lang3.SystemUtils}.
diff --git a/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderConcurrencyTest.java b/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderConcurrencyTest.java
index 9e589d95a..5fc03fd0a 100644
--- a/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderConcurrencyTest.java
+++ b/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderConcurrencyTest.java
@@ -28,7 +28,7 @@
 import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 
 import org.junit.Ignore;
 import org.junit.Test;
diff --git a/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderExcludeTest.java b/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderExcludeTest.java
index 7b87c25d7..505c1dc08 100644
--- a/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderExcludeTest.java
+++ b/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderExcludeTest.java
@@ -21,7 +21,7 @@
 import java.util.Collection;
 import java.util.List;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 
 import org.apache.commons.lang3.ArrayUtils;
 import org.junit.Test;
diff --git a/src/test/java/org/apache/commons/lang3/time/FastDateParserTest.java b/src/test/java/org/apache/commons/lang3/time/FastDateParserTest.java
index dc64eec1f..59fa3c063 100644
--- a/src/test/java/org/apache/commons/lang3/time/FastDateParserTest.java
+++ b/src/test/java/org/apache/commons/lang3/time/FastDateParserTest.java
@@ -30,7 +30,7 @@
 import java.util.Map;
 import java.util.TimeZone;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 
 import org.apache.commons.lang3.SerializationUtils;
 import org.junit.Test;
diff --git a/src/test/java/org/apache/commons/lang3/time/StopWatchTest.java b/src/test/java/org/apache/commons/lang3/time/StopWatchTest.java
index ad2857907..2a3536928 100644
--- a/src/test/java/org/apache/commons/lang3/time/StopWatchTest.java
+++ b/src/test/java/org/apache/commons/lang3/time/StopWatchTest.java
@@ -19,7 +19,7 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
-import junit.framework.Assert;
+import org.junit.Assert;
 
 import org.junit.Test;