diff --git a/src/run_as_node.cpp b/src/run_as_node.cpp
index 5900634..fc92a05 100644
--- a/src/run_as_node.cpp
+++ b/src/run_as_node.cpp
@@ -51,7 +51,7 @@ bool RunAsNode::RunNode()
     return true;
 }
 
-bool RunAsNode::Init(std::string &version)
+bool RunAsNode::Init(const std::string &version)
 {
     uint64_t baseAddr = 0;
 #if defined(_WIN_PLATFORM_)
diff --git a/src/run_as_node.h b/src/run_as_node.h
index 57e0777..6ed53a8 100644
--- a/src/run_as_node.h
+++ b/src/run_as_node.h
@@ -4,6 +4,6 @@
 
 namespace RunAsNode
 {
-    bool Init(std::string &version);
+    bool Init(const std::string &version);
     bool RunNode();
 }
\ No newline at end of file
diff --git a/src/sign.cpp b/src/sign.cpp
index 11b4628..109f84e 100644
--- a/src/sign.cpp
+++ b/src/sign.cpp
@@ -85,7 +85,7 @@ std::string Bin2Hex(const uint8_t *ptr, size_t length)
 	return str;
 }
 
-bool Sign::Init(std::string &version)
+bool Sign::Init(const std::string &version)
 {
 	uint64_t HookAddress = 0;
 #if defined(_WIN_PLATFORM_)
diff --git a/src/sign.h b/src/sign.h
index 848e5a8..5306b75 100644
--- a/src/sign.h
+++ b/src/sign.h
@@ -5,6 +5,6 @@
 
 namespace Sign
 {
-    bool Init(std::string &version);
+    bool Init(const std::string &version);
     std::tuple<std::string, std::string, std::string> Call(const std::string_view cmd, const std::string_view src, int seq);
 }
\ No newline at end of file