diff --git a/CMakeLists.txt b/CMakeLists.txt
index b4a5cdf3..faa95785 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -158,8 +158,8 @@ find_package(spdlog CONFIG)
 if(NOT spdlog_FOUND)
   FetchContent_Declare(
     spdlog
-    URL https://github.com/gabime/spdlog/archive/refs/tags/v1.14.1.tar.gz
-    URL_HASH SHA256=1586508029a7d0670dfcb2d97575dcdc242d3868a259742b69f100801ab4e16b
+    URL https://github.com/gabime/spdlog/archive/refs/tags/v1.15.0.tar.gz
+    URL_HASH SHA256=9962648c9b4f1a7bbc76fd8d9172555bad1871fdb14ff4f842ef87949682caa5
   )
 
   list(APPEND fetchContentPackagesToMakeAvailable spdlog)
diff --git a/src/api-objects/include/ordersconstraints.hpp b/src/api-objects/include/ordersconstraints.hpp
index 5750b1e9..64eef8f0 100644
--- a/src/api-objects/include/ordersconstraints.hpp
+++ b/src/api-objects/include/ordersconstraints.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <spdlog/fmt/bundled/ranges.h>  // TODO: replace with C++23 std::ranges::views::join_with when available
+
 #include <cstdint>
 
 #include "cct_flatset.hpp"
diff --git a/src/api-objects/include/withdrawsordepositsconstraints.hpp b/src/api-objects/include/withdrawsordepositsconstraints.hpp
index 8365dce8..df1dcb5b 100644
--- a/src/api-objects/include/withdrawsordepositsconstraints.hpp
+++ b/src/api-objects/include/withdrawsordepositsconstraints.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <spdlog/fmt/bundled/ranges.h>  // TODO: replace with C++23 std::ranges::views::join_with when available
+
 #include "baseconstraints.hpp"
 #include "cct_flatset.hpp"
 #include "cct_format.hpp"