diff --git a/README.md b/README.md
index 996cc5d..7bf4b1a 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ Get apk-parser from maven central repo:
 <dependency>
     <groupId>net.dongliu</groupId>
     <artifactId>apk-parser</artifactId>
-    <version>2.6.6</version>
+    <version>2.6.7</version>
 </dependency>
 ```
 From version 2.0, apk-parser requires java7. The last version support java6 is 1.7.4.
diff --git a/pom.xml b/pom.xml
index dca55cd..5167c34 100644
--- a/pom.xml
+++ b/pom.xml
@@ -14,7 +14,7 @@
     <artifactId>apk-parser</artifactId>
     <name>apk-parser</name>
     <packaging>jar</packaging>
-    <version>2.6.6</version>
+    <version>2.6.7</version>
     <url>https://github.com/hsiafan/apk-parser</url>
     <developers>
         <developer>
diff --git a/src/test/java/net/dongliu/apk/parser/ByteArrayApkFileTest.java b/src/test/java/net/dongliu/apk/parser/ByteArrayApkFileTest.java
index 37de047..f98bae2 100644
--- a/src/test/java/net/dongliu/apk/parser/ByteArrayApkFileTest.java
+++ b/src/test/java/net/dongliu/apk/parser/ByteArrayApkFileTest.java
@@ -41,8 +41,6 @@ public void testGetSignature() throws IOException, CertificateException {
             assertEquals(1, certificateMetas.size());
             CertificateMeta certificateMeta = certificateMetas.get(0);
             assertEquals("69ee076cc84f4d94802d61907b07525f", certificateMeta.getCertMd5());
-
-            List<ApkV2Signer> apkV2Singers = apkFile.getApkV2Singers();
         }
     }
 }