diff --git a/ports/spdlog/fmt-header.patch b/ports/spdlog/fmt-header.patch
new file mode 100644
index 00000000000..670d5a2f03e
--- /dev/null
+++ b/ports/spdlog/fmt-header.patch
@@ -0,0 +1,13 @@
+diff --git a/bench/bench.cpp b/bench/bench.cpp
+index 8a46837a6..ae47f047c 100644
+--- a/bench/bench.cpp
++++ b/bench/bench.cpp
+@@ -15,7 +15,7 @@
+ #if defined(SPDLOG_USE_STD_FORMAT)
+ #    include <format>
+ #elif defined(SPDLOG_FMT_EXTERNAL)
+-#    include <fmt/locale.h>
++#    include <fmt/format.h>
+ #else
+ #    include "spdlog/fmt/bundled/format.h"
+ #endif
diff --git a/ports/spdlog/portfile.cmake b/ports/spdlog/portfile.cmake
index ca49c2537d5..8d5cd5952d5 100644
--- a/ports/spdlog/portfile.cmake
+++ b/ports/spdlog/portfile.cmake
@@ -1,9 +1,11 @@
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO gabime/spdlog
-    REF v1.10.0
-    SHA512 e82ec0a0c813ed2f1c8a31a0f21dbb733d0a7bd8d05284feae3bd66040bc53ad47a93b26c3e389c7e5623cfdeba1854d690992c842748e072aab3e6e6ecc5666
+    REF v1.11.0
+    SHA512 210f3135c7af3ec774ef9a5c77254ce172a44e2fa720bf590e1c9214782bf5c8140ff683403a85b585868bc308286fbdeb1c988e4ed1eb3c75975254ffe75412
     HEAD_REF v1.x
+    PATCHES
+        fmt-header.patch # https://github.com/gabime/spdlog/pull/2545
 )
 
 vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
@@ -27,7 +29,7 @@ endif()
 string(COMPARE EQUAL "${VCPKG_LIBRARY_LINKAGE}" "dynamic" SPDLOG_BUILD_SHARED)
 
 vcpkg_cmake_configure(
-    SOURCE_PATH ${SOURCE_PATH}
+    SOURCE_PATH "${SOURCE_PATH}"
     OPTIONS
         ${FEATURE_OPTIONS}
         -DSPDLOG_FMT_EXTERNAL=ON
@@ -43,7 +45,7 @@ vcpkg_fixup_pkgconfig()
 vcpkg_copy_pdbs()
 
 # use vcpkg-provided fmt library (see also option SPDLOG_FMT_EXTERNAL above)
-file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/spdlog/fmt/bundled)
+file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/include/spdlog/fmt/bundled")
 
 # add support for integration other than cmake
 vcpkg_replace_string(${CURRENT_PACKAGES_DIR}/include/spdlog/tweakme.h
@@ -63,8 +65,7 @@ if(SPDLOG_WCHAR_FILENAMES)
     )
 endif()
 
-file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include
-                    ${CURRENT_PACKAGES_DIR}/debug/share)
+file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include"
+                    "${CURRENT_PACKAGES_DIR}/debug/share")
 
-# Handle copyright
-file(INSTALL ${SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)
+file(INSTALL "${SOURCE_PATH}/LICENSE" DESTINATION "${CURRENT_PACKAGES_DIR}/share/${PORT}" RENAME copyright)
diff --git a/ports/spdlog/vcpkg.json b/ports/spdlog/vcpkg.json
index 4d517ce4b85..a88014f9ad0 100644
--- a/ports/spdlog/vcpkg.json
+++ b/ports/spdlog/vcpkg.json
@@ -1,7 +1,6 @@
 {
   "name": "spdlog",
-  "version-semver": "1.10.0",
-  "port-version": 2,
+  "version-semver": "1.11.0",
   "description": "Very fast, header only, C++ logging library",
   "homepage": "https://github.com/gabime/spdlog",
   "license": "MIT",
diff --git a/versions/baseline.json b/versions/baseline.json
index 95298f61372..b6eb7e2b3c0 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -7093,8 +7093,8 @@
       "port-version": 3
     },
     "spdlog": {
-      "baseline": "1.10.0",
-      "port-version": 2
+      "baseline": "1.11.0",
+      "port-version": 0
     },
     "spectra": {
       "baseline": "1.0.1",
diff --git a/versions/s-/spdlog.json b/versions/s-/spdlog.json
index 61c93d6945b..347c6b18a1b 100755
--- a/versions/s-/spdlog.json
+++ b/versions/s-/spdlog.json
@@ -1,9 +1,9 @@
 {
   "versions": [
     {
-      "git-tree": "f7ad0e9d934ce7401fb68968f5392fddc7dd4e3a",
-      "version-semver": "1.10.0",
-      "port-version": 2
+      "git-tree": "296d78e54c14ce64474b66f60847026ddb1f576e",
+      "version-semver": "1.11.0",
+      "port-version": 0
     },
     {
       "git-tree": "3256ea88cc375fda2f977a2eb18435e23d498572",