diff --git a/build.gradle b/build.gradle
index 81e742be..15cb9a59 100644
--- a/build.gradle
+++ b/build.gradle
@@ -76,7 +76,7 @@ subprojects { subproject ->
 	}
 
 	ext {
-		assertjVersion = '3.4.1'
+		assertjVersion = '2.5.0'
 		hamcrestVersion = '1.3'
 		jacksonVersion = '2.6.7'
 		junitVersion = '4.12'
diff --git a/spring-kafka/src/test/java/org/springframework/kafka/listener/ConcurrentMessageListenerContainerTests.java b/spring-kafka/src/test/java/org/springframework/kafka/listener/ConcurrentMessageListenerContainerTests.java
index 7af7109f..7c775e8d 100644
--- a/spring-kafka/src/test/java/org/springframework/kafka/listener/ConcurrentMessageListenerContainerTests.java
+++ b/spring-kafka/src/test/java/org/springframework/kafka/listener/ConcurrentMessageListenerContainerTests.java
@@ -128,7 +128,9 @@ public class ConcurrentMessageListenerContainerTests {
 		template.sendDefault(2, "qux");
 		template.flush();
 		assertThat(latch.await(60, TimeUnit.SECONDS)).isTrue();
-		assertThat(listenerThreadNames).allMatch(threadName -> threadName.contains("-consumer-"));
+		for (String threadName : listenerThreadNames) {
+			assertThat(threadName).contains("-consumer-");
+		}
 		@SuppressWarnings("unchecked")
 		List<KafkaMessageListenerContainer<Integer, String>> containers = KafkaTestUtils.getPropertyValue(container,
 				"containers", List.class);
@@ -193,7 +195,9 @@ public class ConcurrentMessageListenerContainerTests {
 		assertThat(latch.await(60, TimeUnit.SECONDS)).isTrue();
 		assertThat(rebalancePartitionsAssignedLatch.await(60, TimeUnit.SECONDS)).isTrue();
 		assertThat(rebalancePartitionsRevokedLatch.await(60, TimeUnit.SECONDS)).isTrue();
-		assertThat(listenerThreadNames).allMatch(threadName -> threadName.contains("-consumer-"));
+		for (String threadName : listenerThreadNames) {
+			assertThat(threadName).contains("-consumer-");
+		}
 		container.stop();
 		this.logger.info("Stop auto");
 	}
@@ -231,7 +235,9 @@ public class ConcurrentMessageListenerContainerTests {
 		template.sendDefault(2, "qux");
 		template.flush();
 		assertThat(latch.await(60, TimeUnit.SECONDS)).isTrue();
-		assertThat(listenerThreadNames).allMatch(threadName -> threadName.contains("-listener-"));
+		for (String threadName : listenerThreadNames) {
+			assertThat(threadName).contains("-listener-");
+		}
 		container.stop();
 		this.logger.info("Stop manual");
 	}
diff --git a/spring-kafka/src/test/java/org/springframework/kafka/support/serializer/JsonSerializationTests.java b/spring-kafka/src/test/java/org/springframework/kafka/support/serializer/JsonSerializationTests.java
index 9defaef8..30c73b4e 100644
--- a/spring-kafka/src/test/java/org/springframework/kafka/support/serializer/JsonSerializationTests.java
+++ b/spring-kafka/src/test/java/org/springframework/kafka/support/serializer/JsonSerializationTests.java
@@ -17,7 +17,7 @@
 package org.springframework.kafka.support.serializer;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
+import static org.junit.Assert.fail;
 
 import java.util.Arrays;
 import java.util.HashMap;
@@ -92,10 +92,17 @@ public class JsonSerializationTests {
 	 */
 	@Test
 	public void testDeserializeSerializedDummyException() {
-		assertThatExceptionOfType(SerializationException.class)
-				.isThrownBy(() -> jsonReader.deserialize(topic, stringWriter.serialize(topic, "dummy")))
-				.withMessageStartingWith("Can't deserialize data [")
-				.withCauseExactlyInstanceOf(JsonParseException.class);
+		try {
+			jsonReader.deserialize(topic, stringWriter.serialize(topic, "dummy"));
+			fail("Expected SerializationException");
+		}
+		catch (SerializationException e) {
+			assertThat(e.getMessage()).startsWith("Can't deserialize data [");
+			assertThat(e.getCause()).isInstanceOf(JsonParseException.class);
+		}
+		catch (Exception e) {
+			fail("Expected SerializationException, not " + e.getClass());
+		}
 	}
 
 	@Test