diff --git a/spring-session/src/main/java/org/springframework/session/data/redis/RedisSessionExpirationPolicy.java b/spring-session/src/main/java/org/springframework/session/data/redis/RedisSessionExpirationPolicy.java
index 8d8e1a4..17e8804 100644
--- a/spring-session/src/main/java/org/springframework/session/data/redis/RedisSessionExpirationPolicy.java
+++ b/spring-session/src/main/java/org/springframework/session/data/redis/RedisSessionExpirationPolicy.java
@@ -68,14 +68,16 @@ final class RedisSessionExpirationPolicy {
 
 	public void onExpirationUpdated(Long originalExpirationTimeInMilli, ExpiringSession session) {
 		String keyToExpire = "expires:" + session.getId();
+		long toExpire = roundUpToNextMinute(expiresInMillis(session));
+
 		if(originalExpirationTimeInMilli != null) {
 			long originalRoundedUp = roundUpToNextMinute(originalExpirationTimeInMilli);
-			String expireKey = getExpirationKey(originalRoundedUp);
-			redis.boundSetOps(expireKey).remove(keyToExpire);
+			if(toExpire != originalRoundedUp) {
+				String expireKey = getExpirationKey(originalRoundedUp);
+				redis.boundSetOps(expireKey).remove(keyToExpire);
+			}
 		}
 
-		long toExpire = roundUpToNextMinute(expiresInMillis(session));
-
 		String expireKey = getExpirationKey(toExpire);
 		BoundSetOperations<Object, Object> expireOperations = redis.boundSetOps(expireKey);
 		expireOperations.add(keyToExpire);
diff --git a/spring-session/src/test/java/org/springframework/session/data/redis/RedisSessionExpirationPolicyTests.java b/spring-session/src/test/java/org/springframework/session/data/redis/RedisSessionExpirationPolicyTests.java
index a0c3cd9..0912cd7 100644
--- a/spring-session/src/test/java/org/springframework/session/data/redis/RedisSessionExpirationPolicyTests.java
+++ b/spring-session/src/test/java/org/springframework/session/data/redis/RedisSessionExpirationPolicyTests.java
@@ -59,7 +59,7 @@ public class RedisSessionExpirationPolicyTests {
 		RedisOperationsSessionRepository repository = new RedisOperationsSessionRepository(sessionRedisOperations);
 		policy = new RedisSessionExpirationPolicy(sessionRedisOperations, repository);
 		session = new MapSession();
-		session.setLastAccessedTime(1429116694665L);
+		session.setLastAccessedTime(1429116694675L);
 		session.setId("12345");
 
 		when(sessionRedisOperations.boundSetOps(anyString())).thenReturn(setOperations);
@@ -81,6 +81,19 @@ public class RedisSessionExpirationPolicyTests {
 		verify(setOperations).remove("expires:"+ session.getId());
 	}
 
+	@Test
+	public void onExpirationUpdatedDoNotSendDeleteWhenExpirationTimeDoesNotChange() throws Exception {
+		long originalExpirationTimeInMs = RedisSessionExpirationPolicy.expiresInMillis(session) - 10;
+		long originalRoundedToNextMinInMs = RedisSessionExpirationPolicy.roundUpToNextMinute(originalExpirationTimeInMs);
+		String originalExpireKey = policy.getExpirationKey(originalRoundedToNextMinInMs);
+
+		policy.onExpirationUpdated(originalExpirationTimeInMs, session);
+
+		// verify the original is not removed
+		verify(sessionRedisOperations).boundSetOps(originalExpireKey);
+		verify(setOperations, never()).remove("expires:"+ session.getId());
+	}
+
 	@Test
 	public void onExpirationUpdatedAddsExpirationTimeRoundedUp() throws Exception {
 		long expirationTimeInMs = RedisSessionExpirationPolicy.expiresInMillis(session);