diff --git a/ports/libb2/portfile.cmake b/ports/libb2/portfile.cmake
index 452218f2804874..25f9d6a461b99d 100644
--- a/ports/libb2/portfile.cmake
+++ b/ports/libb2/portfile.cmake
@@ -6,6 +6,10 @@ vcpkg_from_github(
     HEAD_REF master
 )
 
+# The `libb2` true version is from `B2_LIBRARY_VERSION` defined in `configure.ac`, which `libtool` use `-version-info $(B2_LIBRARY_VERSION)` to set libb2's version(It generated [libb2.1.dylib, libb2.dylib])
+set(B2_LIBRARY_VERSION 1:4:0)
+string(REGEX MATCH "^[0-9]*" B2_LIBRARY_VERSION_MAJOR "${B2_LIBRARY_VERSION}")
+
 set(OPTIONS)
 if(CMAKE_HOST_WIN32)
     set(OPTIONS --disable-native) # requires cpuid
@@ -18,9 +22,55 @@ vcpkg_configure_make(
         ax_cv_check_cflags___O3=no # see https://github.com/microsoft/vcpkg/pull/17912#issuecomment-840514179
         ${OPTIONS}
 )
+
 vcpkg_install_make()
-vcpkg_fixup_pkgconfig()
 
+# Fix #31719: change rpath setting after install
+if(VCPKG_TARGET_IS_OSX AND VCPKG_LIBRARY_LINKAGE STREQUAL "dynamic")
+    set(INSTALL_NAME_DIR "@rpath")
+
+    find_program(
+        INSTALL_NAME_TOOL
+        install_name_tool
+        DOC "Absolute path of install_name_tool"
+        REQUIRED
+    )
+
+    foreach(LIB_NAME IN ITEMS libb2)
+        # debug
+        vcpkg_execute_build_process(
+            COMMAND "${INSTALL_NAME_TOOL}" -id "${INSTALL_NAME_DIR}/${LIB_NAME}.${B2_LIBRARY_VERSION_MAJOR}.dylib"
+            "${LIB_NAME}.${B2_LIBRARY_VERSION_MAJOR}.dylib"
+            WORKING_DIRECTORY "${CURRENT_PACKAGES_DIR}/debug/lib"
+            LOGNAME "make-install-fix-rpath-dbg"
+        )
+
+        vcpkg_execute_build_process(
+            COMMAND "${INSTALL_NAME_TOOL}" -add_rpath "@loader_path"
+            "${LIB_NAME}.${B2_LIBRARY_VERSION_MAJOR}.dylib"
+            WORKING_DIRECTORY "${CURRENT_PACKAGES_DIR}/debug/lib"
+            LOGNAME "make-install-fix-rpath-dbg"
+        )
+
+        # release
+        vcpkg_execute_build_process(
+            COMMAND "${INSTALL_NAME_TOOL}" -id "${INSTALL_NAME_DIR}/${LIB_NAME}.${B2_LIBRARY_VERSION_MAJOR}.dylib"
+            "${LIB_NAME}.${B2_LIBRARY_VERSION_MAJOR}.dylib"
+            WORKING_DIRECTORY "${CURRENT_PACKAGES_DIR}/lib"
+            LOGNAME "make-install-fix-rpath-rel"
+        )
+
+        vcpkg_execute_build_process(
+            COMMAND "${INSTALL_NAME_TOOL}" -add_rpath "@loader_path"
+            "${LIB_NAME}.${B2_LIBRARY_VERSION_MAJOR}.dylib"
+            WORKING_DIRECTORY "${CURRENT_PACKAGES_DIR}/lib"
+            LOGNAME "make-install-fix-rpath-rel"
+        )
+    endforeach()
+
+endif()
+
+vcpkg_fixup_pkgconfig()
 
 file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
 
diff --git a/ports/libb2/vcpkg.json b/ports/libb2/vcpkg.json
index e8ef8ec0578ee2..b40e1853aa5c9d 100644
--- a/ports/libb2/vcpkg.json
+++ b/ports/libb2/vcpkg.json
@@ -1,7 +1,7 @@
 {
   "name": "libb2",
   "version": "0.98.1",
-  "port-version": 6,
+  "port-version": 7,
   "description": "C library providing BLAKE2b, BLAKE2s, BLAKE2bp, BLAKE2sp",
   "homepage": "https://github.com/BLAKE2/libb2",
   "supports": "!windows"
diff --git a/versions/baseline.json b/versions/baseline.json
index d3d15af56a2ece..0b4bd171d9d7fa 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -3854,7 +3854,7 @@
     },
     "libb2": {
       "baseline": "0.98.1",
-      "port-version": 6
+      "port-version": 7
     },
     "libbacktrace": {
       "baseline": "2021-03-14",
diff --git a/versions/l-/libb2.json b/versions/l-/libb2.json
index b26edd252d9648..be76a70fdd1f7d 100644
--- a/versions/l-/libb2.json
+++ b/versions/l-/libb2.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "44f6dc3f78e49afde1d14b56295ebbadf8f0d01e",
+      "version": "0.98.1",
+      "port-version": 7
+    },
     {
       "git-tree": "7c113e12089453e4e2cf2bbf67ad1f0b80a133a8",
       "version": "0.98.1",