diff --git a/evidence/build.gradle b/evidence/build.gradle
index 764961c..26cfca1 100644
--- a/evidence/build.gradle
+++ b/evidence/build.gradle
@@ -48,7 +48,7 @@ dependencies {
     compile logger,spring,alibaba
     runtime logger,spring,alibaba
 
-	compile ("org.fisco-bcos:web3sdk:2.0.0-rc1")
+	compile ("org.fisco-bcos:web3sdk:2.0.0-rc2")
 	
     compile "com.fasterxml.jackson.core:jackson-databind:2.8.8.1"
     runtime "com.fasterxml.jackson.core:jackson-databind:2.8.8.1"
diff --git a/evidence_toolkit/apps/evidence.jar b/evidence_toolkit/apps/evidence.jar
index 1d42753..0359a10 100644
Binary files a/evidence_toolkit/apps/evidence.jar and b/evidence_toolkit/apps/evidence.jar differ
diff --git a/evidence_toolkit/lib/log4j-1.2.17.jar b/evidence_toolkit/lib/log4j-1.2.17.jar
deleted file mode 100644
index 1d425cf..0000000
Binary files a/evidence_toolkit/lib/log4j-1.2.17.jar and /dev/null differ
diff --git a/evidence_toolkit/lib/netty-all-4.1.15.Final.jar b/evidence_toolkit/lib/netty-all-4.1.15.Final.jar
deleted file mode 100644
index 89ca7cd..0000000
Binary files a/evidence_toolkit/lib/netty-all-4.1.15.Final.jar and /dev/null differ
diff --git a/evidence_toolkit/lib/netty-tcnative-2.0.0.Final.jar b/evidence_toolkit/lib/netty-tcnative-2.0.0.Final.jar
deleted file mode 100644
index 129988b..0000000
Binary files a/evidence_toolkit/lib/netty-tcnative-2.0.0.Final.jar and /dev/null differ
diff --git a/evidence_toolkit/lib/slf4j-log4j12-1.7.25.jar b/evidence_toolkit/lib/slf4j-log4j12-1.7.25.jar
deleted file mode 100644
index 7d88a6e..0000000
Binary files a/evidence_toolkit/lib/slf4j-log4j12-1.7.25.jar and /dev/null differ
diff --git a/evidence_toolkit/lib/spring-jdbc-4.3.18.RELEASE.jar b/evidence_toolkit/lib/spring-jdbc-4.3.18.RELEASE.jar
deleted file mode 100644
index f9987c8..0000000
Binary files a/evidence_toolkit/lib/spring-jdbc-4.3.18.RELEASE.jar and /dev/null differ
diff --git a/evidence_toolkit/lib/spring-test-4.3.18.RELEASE.jar b/evidence_toolkit/lib/spring-test-4.3.18.RELEASE.jar
deleted file mode 100644
index 11c617e..0000000
Binary files a/evidence_toolkit/lib/spring-test-4.3.18.RELEASE.jar and /dev/null differ
diff --git a/evidence_toolkit/lib/web3sdk-2.0.0-rc1.jar b/evidence_toolkit/lib/web3sdk-2.0.0-rc1.jar
deleted file mode 100644
index 75d9d13..0000000
Binary files a/evidence_toolkit/lib/web3sdk-2.0.0-rc1.jar and /dev/null differ