diff --git a/pom.xml b/pom.xml
index 08250fd..81d0d6c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -73,17 +73,17 @@
             <dependency>
                 <groupId>org.apache.httpcomponents</groupId>
                 <artifactId>httpcore</artifactId>
-                <version>4.4.13</version>
+                <version>4.4.14</version>
             </dependency>
             <dependency>
                 <groupId>com.google.guava</groupId>
                 <artifactId>guava</artifactId>
-                <version>30.0-android</version>
+                <version>30.1-jre</version>
             </dependency>
             <dependency>
                 <groupId>com.jayway.jsonpath</groupId>
                 <artifactId>json-path</artifactId>
-                <version>2.4.0</version>
+                <version>2.5.0</version>
             </dependency>
             <dependency>
                 <groupId>org.slf4j</groupId>
@@ -103,7 +103,7 @@
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>fastjson</artifactId>
-                <version>1.2.69</version>
+                <version>1.2.75</version>
             </dependency>
             <dependency>
                 <groupId>com.github.dreamhead</groupId>
@@ -125,13 +125,13 @@
             <dependency>
                 <groupId>org.assertj</groupId>
                 <artifactId>assertj-core</artifactId>
-                <version>3.16.1</version>
+                <version>3.18.1</version>
                 <scope>test</scope>
             </dependency>
             <dependency>
                 <groupId>org.apache.commons</groupId>
                 <artifactId>commons-lang3</artifactId>
-                <version>3.10</version>
+                <version>3.11</version>
             </dependency>
             <dependency>
                 <groupId>commons-collections</groupId>
@@ -139,19 +139,19 @@
                 <version>3.2.2</version>
             </dependency>
             <dependency>
-			    <groupId>commons-io</groupId>
-			    <artifactId>commons-io</artifactId>
-			    <version>2.7</version>
-			</dependency>
+                <groupId>commons-io</groupId>
+                <artifactId>commons-io</artifactId>
+                <version>2.8.0</version>
+            </dependency>
             <dependency>
                 <groupId>org.codehaus.groovy</groupId>
                 <artifactId>groovy-all</artifactId>
-                <version>2.4.19</version>
+                <version>3.0.7</version>
             </dependency>
             <dependency>
                 <groupId>org.jruby</groupId>
                 <artifactId>jruby</artifactId>
-                <version>9.2.11.1</version>
+                <version>9.2.14.0</version>
             </dependency>
             <dependency>
                 <groupId>org.jsoup</groupId>
@@ -171,12 +171,12 @@
             <dependency>
                 <groupId>net.sf.saxon</groupId>
                 <artifactId>Saxon-HE</artifactId>
-                <version>10.1</version>
+                <version>10.3</version>
             </dependency>
             <dependency>
                 <groupId>net.sourceforge.htmlcleaner</groupId>
                 <artifactId>htmlcleaner</artifactId>
-                <version>2.5</version>
+                <version>2.24</version>
             </dependency>
             <dependency>
                 <groupId>com.github.detro</groupId>
@@ -191,7 +191,7 @@
             <dependency>
                 <groupId>redis.clients</groupId>
                 <artifactId>jedis</artifactId>
-                <version>2.9.3</version>
+                <version>3.4.1</version>
             </dependency>
         </dependencies>
     </dependencyManagement>
diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/selector/LinksSelector.java b/webmagic-core/src/main/java/us/codecraft/webmagic/selector/LinksSelector.java
index 5296a74..2dafe8e 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/selector/LinksSelector.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/selector/LinksSelector.java
@@ -1,12 +1,12 @@
 package us.codecraft.webmagic.selector;
 
-import org.jsoup.helper.StringUtil;
-import org.jsoup.nodes.Element;
-import org.jsoup.select.Elements;
-
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.commons.lang3.StringUtils;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+
 /**
  * Links selector based on jsoup. Use absolute url. <br>
  *
@@ -23,9 +23,9 @@ public class LinksSelector extends BaseElementSelector {
     @Override
     public List<String> selectList(Element element) {
         Elements elements = element.select("a");
-        List<String> links = new ArrayList<String>(elements.size());
+        List<String> links = new ArrayList<>(elements.size());
         for (Element element0 : elements) {
-            if (!StringUtil.isBlank(element0.baseUri())) {
+            if (StringUtils.isNotBlank(element0.baseUri())) {
                 links.add(element0.attr("abs:href"));
             } else {
                 links.add(element0.attr("href"));
diff --git a/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisPriorityScheduler.java b/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisPriorityScheduler.java
index 540574a..46d47e5 100644
--- a/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisPriorityScheduler.java
+++ b/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisPriorityScheduler.java
@@ -1,22 +1,23 @@
 package us.codecraft.webmagic.scheduler;
 
-import com.alibaba.fastjson.JSON;
+import java.util.Set;
+
 import org.apache.commons.codec.digest.DigestUtils;
 import org.apache.commons.lang3.StringUtils;
+
+import com.alibaba.fastjson.JSON;
+
 import redis.clients.jedis.Jedis;
 import redis.clients.jedis.JedisPool;
 import us.codecraft.webmagic.Request;
 import us.codecraft.webmagic.Task;
 
-import java.util.Set;
-
 /**
  * the redis scheduler with priority
  * @author sai
  * Created by sai on 16-5-27.
  */
-public class RedisPriorityScheduler extends RedisScheduler
-{
+public class RedisPriorityScheduler extends RedisScheduler {
 
     private static final String ZSET_PREFIX = "zset_";
 
@@ -37,62 +38,44 @@ public class RedisPriorityScheduler extends RedisScheduler
     }
 
     @Override
-    protected void pushWhenNoDuplicate(Request request, Task task)
-    {
-        Jedis jedis = pool.getResource();
-        try
-        {
-            if(request.getPriority() > 0)
+    protected void pushWhenNoDuplicate(Request request, Task task) {
+        try (Jedis jedis = pool.getResource()) {
+            if (request.getPriority() > 0) {
                 jedis.zadd(getZsetPlusPriorityKey(task), request.getPriority(), request.getUrl());
-            else if(request.getPriority() < 0)
+            } else if (request.getPriority() < 0) {
                 jedis.zadd(getZsetMinusPriorityKey(task), request.getPriority(), request.getUrl());
-            else
+            } else {
                 jedis.lpush(getQueueNoPriorityKey(task), request.getUrl());
+            }
 
             setExtrasInItem(jedis, request, task);
         }
-        finally
-        {
-            pool.returnResource(jedis);
-        }
     }
 
     @Override
-    public synchronized Request poll(Task task)
-    {
-        Jedis jedis = pool.getResource();
-        try
-        {
+    public synchronized Request poll(Task task) {
+        try (Jedis jedis = pool.getResource()) {
             String url = getRequest(jedis, task);
-            if(StringUtils.isBlank(url))
+            if (StringUtils.isBlank(url)) {
                 return null;
+            }
             return getExtrasInItem(jedis, url, task);
         }
-        finally
-        {
-            pool.returnResource(jedis);
-        }
     }
 
-    private String getRequest(Jedis jedis, Task task)
-    {
+    private String getRequest(Jedis jedis, Task task) {
         String url;
         Set<String> urls = jedis.zrevrange(getZsetPlusPriorityKey(task), 0, 0);
-        if(urls.isEmpty())
-        {
+        if (urls.isEmpty()) {
             url = jedis.lpop(getQueueNoPriorityKey(task));
-            if(StringUtils.isBlank(url))
-            {
+            if (StringUtils.isBlank(url)) {
                 urls = jedis.zrevrange(getZsetMinusPriorityKey(task), 0, 0);
-                if(!urls.isEmpty())
-                {
+                if (!urls.isEmpty()) {
                     url = urls.toArray(new String[0])[0];
                     jedis.zrem(getZsetMinusPriorityKey(task), url);
                 }
             }
-        }
-        else
-        {
+        } else {
             url = urls.toArray(new String[0])[0];
             jedis.zrem(getZsetPlusPriorityKey(task), url);
         }
@@ -100,51 +83,39 @@ public class RedisPriorityScheduler extends RedisScheduler
     }
 
     @Override
-    public void resetDuplicateCheck(Task task)
-    {
-        Jedis jedis = pool.getResource();
-        try
-        {
+    public void resetDuplicateCheck(Task task) {
+        try (Jedis jedis = pool.getResource()) {
             jedis.del(getSetKey(task));
         }
-        finally
-        {
-            pool.returnResource(jedis);
-        }
     }
 
-    private String getZsetPlusPriorityKey(Task task)
-    {
+    private String getZsetPlusPriorityKey(Task task) {
         return ZSET_PREFIX + task.getUUID() + PLUS_PRIORITY_SUFFIX;
     }
 
-    private String getQueueNoPriorityKey(Task task)
-    {
+    private String getQueueNoPriorityKey(Task task) {
         return QUEUE_PREFIX + task.getUUID() + NO_PRIORITY_SUFFIX;
     }
 
-    private String getZsetMinusPriorityKey(Task task)
-    {
+    private String getZsetMinusPriorityKey(Task task) {
         return ZSET_PREFIX + task.getUUID() + MINUS_PRIORITY_SUFFIX;
     }
 
-    private void setExtrasInItem(Jedis jedis,Request request, Task task)
-    {
-        if(request.getExtras() != null)
-        {
-            String field = DigestUtils.shaHex(request.getUrl());
+    private void setExtrasInItem(Jedis jedis,Request request, Task task) {
+        if (request.getExtras() != null) {
+            String field = DigestUtils.sha1Hex(request.getUrl());
             String value = JSON.toJSONString(request);
             jedis.hset(getItemKey(task), field, value);
         }
     }
 
-    private Request getExtrasInItem(Jedis jedis, String url, Task task)
-    {
+    private Request getExtrasInItem(Jedis jedis, String url, Task task) {
         String key      = getItemKey(task);
-        String field    = DigestUtils.shaHex(url);
+        String field    = DigestUtils.sha1Hex(url);
         byte[] bytes    = jedis.hget(key.getBytes(), field.getBytes());
-        if(bytes != null)
+        if (bytes != null) {
             return JSON.parseObject(new String(bytes), Request.class);
+        }
         return new Request(url);
     }
 }
diff --git a/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisScheduler.java b/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisScheduler.java
index c70d885..19e8313 100644
--- a/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisScheduler.java
+++ b/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisScheduler.java
@@ -1,8 +1,10 @@
 package us.codecraft.webmagic.scheduler;
 
-import com.alibaba.fastjson.JSON;
 import org.apache.commons.codec.digest.DigestUtils;
 import org.apache.commons.lang3.StringUtils;
+
+import com.alibaba.fastjson.JSON;
+
 import redis.clients.jedis.Jedis;
 import redis.clients.jedis.JedisPool;
 import redis.clients.jedis.JedisPoolConfig;
@@ -37,21 +39,15 @@ public class RedisScheduler extends DuplicateRemovedScheduler implements Monitor
 
     @Override
     public void resetDuplicateCheck(Task task) {
-        Jedis jedis = pool.getResource();
-        try {
+        try (Jedis jedis = pool.getResource()) {
             jedis.del(getSetKey(task));
-        } finally {
-            pool.returnResource(jedis);
         }
     }
 
     @Override
     public boolean isDuplicate(Request request, Task task) {
-        Jedis jedis = pool.getResource();
-        try {
+		try (Jedis jedis = pool.getResource()) {
             return jedis.sadd(getSetKey(task), request.getUrl()) == 0;
-        } finally {
-            pool.returnResource(jedis);
         }
 
     }
@@ -62,7 +58,7 @@ public class RedisScheduler extends DuplicateRemovedScheduler implements Monitor
         try {
             jedis.rpush(getQueueKey(task), request.getUrl());
             if (checkForAdditionalInfo(request)) {
-                String field = DigestUtils.shaHex(request.getUrl());
+                String field = DigestUtils.sha1Hex(request.getUrl());
                 String value = JSON.toJSONString(request);
                 jedis.hset((ITEM_PREFIX + task.getUUID()), field, value);
             }
@@ -100,14 +96,13 @@ public class RedisScheduler extends DuplicateRemovedScheduler implements Monitor
 
     @Override
     public synchronized Request poll(Task task) {
-        Jedis jedis = pool.getResource();
-        try {
+		try (Jedis jedis = pool.getResource()) {
             String url = jedis.lpop(getQueueKey(task));
             if (url == null) {
                 return null;
             }
             String key = ITEM_PREFIX + task.getUUID();
-            String field = DigestUtils.shaHex(url);
+            String field = DigestUtils.sha1Hex(url);
             byte[] bytes = jedis.hget(key.getBytes(), field.getBytes());
             if (bytes != null) {
                 Request o = JSON.parseObject(new String(bytes), Request.class);
@@ -115,8 +110,6 @@ public class RedisScheduler extends DuplicateRemovedScheduler implements Monitor
             }
             Request request = new Request(url);
             return request;
-        } finally {
-            pool.returnResource(jedis);
         }
     }
 
@@ -134,23 +127,17 @@ public class RedisScheduler extends DuplicateRemovedScheduler implements Monitor
 
     @Override
     public int getLeftRequestsCount(Task task) {
-        Jedis jedis = pool.getResource();
-        try {
+        try (Jedis jedis = pool.getResource()) {
             Long size = jedis.llen(getQueueKey(task));
             return size.intValue();
-        } finally {
-            pool.returnResource(jedis);
         }
     }
 
     @Override
     public int getTotalRequestsCount(Task task) {
-        Jedis jedis = pool.getResource();
-        try {
+        try (Jedis jedis = pool.getResource()) {
             Long size = jedis.scard(getSetKey(task));
             return size.intValue();
-        } finally {
-            pool.returnResource(jedis);
         }
     }
 }