diff --git a/pom.xml b/pom.xml
index 2b2384fd8..02b79d92f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,14 +6,13 @@
         <version>7</version>
     </parent>
     <groupId>us.codecraft</groupId>
-    <version>0.7.3</version>
+    <version>0.7.5</version>
     <modelVersion>4.0.0</modelVersion>
     <packaging>pom</packaging>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <spring-version>4.0.0.RELEASE</spring-version>
-
     </properties>
     <artifactId>webmagic-parent</artifactId>
     <name>webmagic-parent</name>
@@ -64,12 +63,6 @@
                 <version>4.11</version>
                 <scope>test</scope>
             </dependency>
-            <dependency>
-                <groupId>org.mockito</groupId>
-                <artifactId>mockito-all</artifactId>
-                <version>1.10.19</version>
-                <scope>test</scope>
-            </dependency>
             <dependency>
                 <groupId>org.apache.httpcomponents</groupId>
                 <artifactId>httpclient</artifactId>
diff --git a/webmagic-core/pom.xml b/webmagic-core/pom.xml
index e889cd491..b81d31db7 100644
--- a/webmagic-core/pom.xml
+++ b/webmagic-core/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>us.codecraft</groupId>
         <artifactId>webmagic-parent</artifactId>
-        <version>0.7.3</version>
+        <version>0.7.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/Spider.java b/webmagic-core/src/main/java/us/codecraft/webmagic/Spider.java
index 62c989f1d..421b54e0b 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/Spider.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/Spider.java
@@ -305,7 +305,13 @@ public void run() {
         initComponent();
         logger.info("Spider {} started!",getUUID());
         while (!Thread.currentThread().isInterrupted() && stat.get() == STAT_RUNNING) {
-            final Request request = scheduler.poll(this);
+            final Request request;
+            try {
+                request = scheduler.poll(this);
+            } catch (Exception e) {
+                logger.warn(e.getMessage());
+                continue;
+            }
             if (request == null) {
                 if (threadPool.getThreadAlive() == 0 && exitWhenComplete) {
                     break;
diff --git a/webmagic-extension/pom.xml b/webmagic-extension/pom.xml
index 7e949ca6f..c71640113 100644
--- a/webmagic-extension/pom.xml
+++ b/webmagic-extension/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>us.codecraft</groupId>
         <artifactId>webmagic-parent</artifactId>
-        <version>0.7.3</version>
+        <version>0.7.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/webmagic-samples/pom.xml b/webmagic-samples/pom.xml
index 072bb3fd5..c02c07421 100644
--- a/webmagic-samples/pom.xml
+++ b/webmagic-samples/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>webmagic-parent</artifactId>
         <groupId>us.codecraft</groupId>
-        <version>0.7.3</version>
+        <version>0.7.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/webmagic-saxon/pom.xml b/webmagic-saxon/pom.xml
index 95f706ed5..f8b3c1f24 100644
--- a/webmagic-saxon/pom.xml
+++ b/webmagic-saxon/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>webmagic-parent</artifactId>
         <groupId>us.codecraft</groupId>
-        <version>0.7.3</version>
+        <version>0.7.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/webmagic-scripts/pom.xml b/webmagic-scripts/pom.xml
index 22956cb55..af72f18fc 100755
--- a/webmagic-scripts/pom.xml
+++ b/webmagic-scripts/pom.xml
@@ -3,12 +3,12 @@
     <parent>
         <artifactId>webmagic-parent</artifactId>
         <groupId>us.codecraft</groupId>
-        <version>0.7.3</version>
+        <version>0.7.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
-    <groupId>us.codecraft</groupId>
     <artifactId>webmagic-scripts</artifactId>
+    
     <properties>
         <kotlin.version>1.1.2-2</kotlin.version>
     </properties>
diff --git a/webmagic-selenium/pom.xml b/webmagic-selenium/pom.xml
index 1cbf59216..1fa05538d 100644
--- a/webmagic-selenium/pom.xml
+++ b/webmagic-selenium/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<artifactId>webmagic-parent</artifactId>
 		<groupId>us.codecraft</groupId>
-		<version>0.7.3</version>
+		<version>0.7.5</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>