diff --git a/ports/cli11/portfile.cmake b/ports/cli11/portfile.cmake
index 7224f1b260..cee255898d 100644
--- a/ports/cli11/portfile.cmake
+++ b/ports/cli11/portfile.cmake
@@ -2,8 +2,10 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO CLIUtils/CLI11
     REF "v${VERSION}"
-    SHA512 965290d09977672d3bc3c57ca4b89a88c2c09461da6e866b18217d702d4d5a0977588fcb8fef1a3c3804e61ad80d276029f47469cc83dbfdc7021ee35f6b7269
+    SHA512 fdb61c430f5b99a9495fda7f94bfc8d0fb5360c99beeccbcb3b8918713579aac97fa0dcbce296065d9043f141a538c505919c9810fd1d192661e8b48b6a2637a
     HEAD_REF main
+    PATCHES
+        revert-1012-pkgconfig.diff
 )
 
 vcpkg_cmake_configure(
@@ -21,4 +23,6 @@ vcpkg_cmake_config_fixup(CONFIG_PATH share/cmake/CLI11)
 vcpkg_fixup_pkgconfig()
 file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include" "${CURRENT_PACKAGES_DIR}/debug/share")
 
+vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/CLI/CLI.hpp" "#pragma once" "#pragma once\n#ifndef CLI11_COMPILE\n#define CLI11_COMPILE\n#endif")
+
 vcpkg_install_copyright(FILE_LIST "${SOURCE_PATH}/LICENSE")
diff --git a/ports/cli11/revert-1012-pkgconfig.diff b/ports/cli11/revert-1012-pkgconfig.diff
new file mode 100644
index 0000000000..d48e61669b
--- /dev/null
+++ b/ports/cli11/revert-1012-pkgconfig.diff
@@ -0,0 +1,10 @@
+diff --git a/cmake/CLI11GeneratePkgConfig.cmake b/cmake/CLI11GeneratePkgConfig.cmake
+index 7ed87f077..a9c5eb885 100644
+--- a/cmake/CLI11GeneratePkgConfig.cmake
++++ b/cmake/CLI11GeneratePkgConfig.cmake
+@@ -4,4 +4,4 @@ else()
+   configure_file("cmake/CLI11.pc.in" "CLI11.pc" @ONLY)
+ endif()
+ 
+-install(FILES "${PROJECT_BINARY_DIR}/CLI11.pc" DESTINATION "${CMAKE_INSTALL_DATADIR}/pkgconfig")
++install(FILES "${PROJECT_BINARY_DIR}/CLI11.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
diff --git a/ports/cli11/vcpkg.json b/ports/cli11/vcpkg.json
index b16e5867f4..b986cb07da 100644
--- a/ports/cli11/vcpkg.json
+++ b/ports/cli11/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "cli11",
-  "version": "2.4.1",
+  "version": "2.4.2",
   "description": "CLI11 is a command line parser for C++11 and beyond that provides a rich feature set with a simple and intuitive interface.",
   "homepage": "https://github.com/CLIUtils/CLI11",
   "license": "BSD-3-Clause",
diff --git a/versions/baseline.json b/versions/baseline.json
index b0d27ce6b7..a6aa9b6f28 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -1677,7 +1677,7 @@
       "port-version": 0
     },
     "cli11": {
-      "baseline": "2.4.1",
+      "baseline": "2.4.2",
       "port-version": 0
     },
     "clickhouse-cpp": {
diff --git a/versions/c-/cli11.json b/versions/c-/cli11.json
index 82886cca6c..00c7decf00 100644
--- a/versions/c-/cli11.json
+++ b/versions/c-/cli11.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "06ac9dc66d709da4eabe20f952b83b4bb7ae7dda",
+      "version": "2.4.2",
+      "port-version": 0
+    },
     {
       "git-tree": "05a104e144c6cfa16b0a896502ef96f3ccbbdddc",
       "version": "2.4.1",