diff --git a/ports/jsoncpp/CONTROL b/ports/jsoncpp/CONTROL
index 6bbe46c0e0..f0d4b66a33 100644
--- a/ports/jsoncpp/CONTROL
+++ b/ports/jsoncpp/CONTROL
@@ -1,4 +1,4 @@
 Source: jsoncpp
-Version: 1.8.4-1
+Version: 1.9.1
 Homepage: https://github.com/open-source-parsers/jsoncpp
 Description: jsoncpp is an implementation of a JSON reader and writer in C++. JSON (JavaScript Object Notation) is a lightweight data-interchange format that it is easy to parse and redeable for human.
diff --git a/ports/jsoncpp/portfile.cmake b/ports/jsoncpp/portfile.cmake
index f04620fd53..3e00476d2f 100644
--- a/ports/jsoncpp/portfile.cmake
+++ b/ports/jsoncpp/portfile.cmake
@@ -2,8 +2,8 @@ include(vcpkg_common_functions)
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO open-source-parsers/jsoncpp
-    REF 1.8.4
-    SHA512 f70361a3263dd8b9441374a9a409462be1426c0d6587c865171a80448ab73b3f69de2b4d70d2f0c541764e1e6cccc727dd53178347901f625ec6fb54fb94f4f1
+    REF 1.9.1
+    SHA512 4a8352e1d32c0ba8a0aea4df1663279cb2256b334643c5b62be37dfb5951e06900ba38c010d1201511fcf7de09137d6a4b886edbb2b99160d2f62b5f4679f766
     HEAD_REF master
 )