diff --git a/appveyor.yml b/appveyor.yml
index 5b16ddc35..4d121e259 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -51,6 +51,10 @@ test_script:
 
     refine test
 
+on_failure:
+- cmd: |-
+    dir
+
 cache:
   - C:\Users\appveyor\.m2
 
diff --git a/extensions/database/pom.xml b/extensions/database/pom.xml
index 0b43d1337..04ec35734 100644
--- a/extensions/database/pom.xml
+++ b/extensions/database/pom.xml
@@ -64,7 +64,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>2.22.2</version>
         <configuration>
           <suiteXmlFiles>
             <suiteXmlFile>tests/conf/tests.xml</suiteXmlFile>
diff --git a/extensions/gdata/pom.xml b/extensions/gdata/pom.xml
index cbc5fc4bb..1c4d41d67 100644
--- a/extensions/gdata/pom.xml
+++ b/extensions/gdata/pom.xml
@@ -64,7 +64,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>${surefire.version}</version>
         <configuration>
            <skip>true</skip>
         </configuration>
diff --git a/extensions/jython/pom.xml b/extensions/jython/pom.xml
index 9ab130ad1..730902205 100644
--- a/extensions/jython/pom.xml
+++ b/extensions/jython/pom.xml
@@ -66,7 +66,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>${surefire.version}</version>
         <configuration>
           <suiteXmlFiles>
             <suiteXmlFile>tests/conf/tests.xml</suiteXmlFile>
diff --git a/extensions/pc-axis/pom.xml b/extensions/pc-axis/pom.xml
index 23c295b8b..71dc1fa79 100644
--- a/extensions/pc-axis/pom.xml
+++ b/extensions/pc-axis/pom.xml
@@ -64,7 +64,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>${surefire.version}</version>
         <configuration>
           <skip>true</skip>
         </configuration>
diff --git a/extensions/phonetic/pom.xml b/extensions/phonetic/pom.xml
index a2b43293f..05ae761e5 100644
--- a/extensions/phonetic/pom.xml
+++ b/extensions/phonetic/pom.xml
@@ -66,7 +66,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>${surefire.version}</version>
         <configuration>
           <suiteXmlFiles>
             <suiteXmlFile>tests/conf/tests.xml</suiteXmlFile>
diff --git a/extensions/wikidata/pom.xml b/extensions/wikidata/pom.xml
index ddc39d8ed..ff7326707 100644
--- a/extensions/wikidata/pom.xml
+++ b/extensions/wikidata/pom.xml
@@ -73,7 +73,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>${surefire.version}</version>
         <configuration>
           <suiteXmlFiles>
             <suiteXmlFile>tests/conf/tests.xml</suiteXmlFile>
diff --git a/main/pom.xml b/main/pom.xml
index fd4aceee5..f4607e50d 100644
--- a/main/pom.xml
+++ b/main/pom.xml
@@ -80,7 +80,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>${surefire.version}</version>
         <configuration>
           <suiteXmlFiles>
             <suiteXmlFile>tests/server/conf/tests.xml</suiteXmlFile>
diff --git a/pom.xml b/pom.xml
index 3e70077f6..f478d6ba1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,6 +22,7 @@
     <jee.path>/</jee.path>
     <jee.port>3333</jee.port>
     <refine.data>/tmp/refine</refine.data>
+    <surefire.version>2.22.2</surefire.version>
     <surefireArgs></surefireArgs>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
@@ -90,7 +91,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>${surefire.version}</version>
         <configuration>
           <argLine>${surefireArgs}</argLine>
           <suiteXmlFiles>