diff --git a/include/jwt-cpp/jwt.h b/include/jwt-cpp/jwt.h
index 515a89bae..e21020586 100644
--- a/include/jwt-cpp/jwt.h
+++ b/include/jwt-cpp/jwt.h
@@ -1626,7 +1626,7 @@ namespace jwt {
 					ec = error::signature_generation_error::signinit_failed;
 					return {};
 				}
-				if (!EVP_DigestUpdate(ctx.get(), data.data(), static_cast<unsigned int>(data.size()))) {
+				if (!EVP_DigestUpdate(ctx.get(), data.data(), data.size())) {
 					ec = error::signature_generation_error::digestupdate_failed;
 					return {};
 				}
@@ -1666,7 +1666,7 @@ namespace jwt {
 					ec = error::signature_verification_error::verifyinit_failed;
 					return;
 				}
-				if (!EVP_DigestUpdate(ctx.get(), data.data(), static_cast<unsigned int>(data.size()))) {
+				if (!EVP_DigestUpdate(ctx.get(), data.data(), data.size())) {
 					ec = error::signature_verification_error::verifyupdate_failed;
 					return;
 				}
@@ -1985,7 +1985,7 @@ namespace jwt {
 					return {};
 				}
 #endif
-				if (EVP_DigestUpdate(md_ctx.get(), data.data(), static_cast<unsigned int>(data.size())) != 1) {
+				if (EVP_DigestUpdate(md_ctx.get(), data.data(), data.size()) != 1) {
 					ec = error::signature_generation_error::digestupdate_failed;
 					return {};
 				}
@@ -2034,7 +2034,7 @@ namespace jwt {
 					return;
 				}
 #endif
-				if (EVP_DigestUpdate(md_ctx.get(), data.data(), static_cast<unsigned int>(data.size())) != 1) {
+				if (EVP_DigestUpdate(md_ctx.get(), data.data(), data.size()) != 1) {
 					ec = error::signature_verification_error::verifyupdate_failed;
 					return;
 				}
diff --git a/include/jwt-cpp/traits/open-source-parsers-jsoncpp/traits.h b/include/jwt-cpp/traits/open-source-parsers-jsoncpp/traits.h
index 438df57b8..52e14ae3c 100644
--- a/include/jwt-cpp/traits/open-source-parsers-jsoncpp/traits.h
+++ b/include/jwt-cpp/traits/open-source-parsers-jsoncpp/traits.h
@@ -95,7 +95,7 @@ namespace jwt {
 
 			static integer_type as_integer(const value_type& val) {
 				switch (val.type()) {
-				case Json::intValue: return val.asInt64();
+				case Json::intValue: return static_cast<integer_type>(val.asInt64());
 				case Json::uintValue: return static_cast<integer_type>(val.asUInt64());
 				default: throw std::bad_cast();
 				}