diff --git a/include/jwt-cpp/base.h b/include/jwt-cpp/base.h
index dfca7fc..4d05c0b 100644
--- a/include/jwt-cpp/base.h
+++ b/include/jwt-cpp/base.h
@@ -2,6 +2,10 @@
 #include <string>
 #include <array>
 
+#ifdef _MSC_VER
+#pragma warning(disable : 4267)
+#endif
+
 namespace jwt {
 	namespace alphabet {
 		struct base64 {
diff --git a/include/jwt-cpp/jwt.h b/include/jwt-cpp/jwt.h
index ec56810..313cef2 100644
--- a/include/jwt-cpp/jwt.h
+++ b/include/jwt-cpp/jwt.h
@@ -12,6 +12,11 @@
 #include <openssl/ec.h>
 #include <openssl/err.h>
 
+#ifdef _MSC_VER
+#pragma warning(disable : 4267)
+#pragma warning(disable : 4067)
+#endif
+
 //If openssl version less than 1.1
 #if OPENSSL_VERSION_NUMBER < 269484032
 #define OPENSSL10
