diff --git a/pom.xml b/pom.xml
index 1e41627..6832e6a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -40,7 +40,7 @@
   </parent>
   <groupId>io.github.tronprotocol</groupId>
   <artifactId>zksnark-java-sdk</artifactId>
-  <version>1.0.0</version>
+  <version>1.0.1</version>
   <packaging>bundle</packaging>
 
   <properties>
@@ -48,7 +48,6 @@
     <forge-project-id-uc>zksnark-java-sdk</forge-project-id-uc>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <hawtjni-version>1.18</hawtjni-version>
-    <commons-io-version>2.11.0</commons-io-version>
     <junit-version>4.13.2</junit-version>
     <jacoco.version>0.8.8</jacoco.version>
     <gpg.keyname>0xEF7F2D6C</gpg.keyname>
@@ -106,11 +105,6 @@
       <artifactId>hawtjni-runtime</artifactId>
       <version>${hawtjni-version}</version>
     </dependency>
-    <dependency>
-      <groupId>commons-io</groupId>
-      <artifactId>commons-io</artifactId>
-      <version>${commons-io-version}</version>
-    </dependency>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
@@ -212,7 +206,6 @@
             <Bundle-SymbolicName>${project.groupId}.${project.artifactId}</Bundle-SymbolicName>
             <Export-Package>
               org.tron.common.*;version=${project.version},
-              org.apache.commons.*;version=${commons-io-version},
               org.fusesource.hawtjni.*;version=${hawtjni-version},
             </Export-Package>
             <Import-Package/>
diff --git a/src/main/java/org/tron/common/util/Utils.java b/src/main/java/org/tron/common/util/Utils.java
index 88acaf0..0879d98 100644
--- a/src/main/java/org/tron/common/util/Utils.java
+++ b/src/main/java/org/tron/common/util/Utils.java
@@ -16,22 +16,33 @@
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
-import org.apache.commons.io.FileUtils;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+
 import org.fusesource.hawtjni.runtime.Library;
 
 public interface Utils {
     Library LIBRARY = new Library("zksnarkjni", Utils.class);
 
   static String getParamsFile(String fileName) {
-    InputStream in = Utils.class.getClassLoader()
-        .getResourceAsStream("params" + File.separator + fileName);
-    File fileOut = new File(System.getProperty("java.io.tmpdir") + File.separator + fileName);
     try {
-      FileUtils.copyToFile(in, fileOut);
+      File target = Paths.get(System.getProperty("java.io.tmpdir"),
+          fileName + "." + System.currentTimeMillis()).toFile();
+      try (InputStream in = Thread.currentThread().getContextClassLoader()
+          .getResourceAsStream("params" + File.separator + fileName);
+           ){
+        if (in != null) {
+          Files.copy(in, target.toPath(), StandardCopyOption.REPLACE_EXISTING);
+          target.deleteOnExit();
+          return target.getAbsolutePath();
+        } else {
+          throw new IOException("Resource not found: " + fileName);
+        }
+      }
     } catch (IOException e) {
       throw new RuntimeException(e);
     }
-    return fileOut.getAbsolutePath();
   }
 
 }