diff --git a/include/dwarfs/compression_metadata_requirements.h b/include/dwarfs/compression_metadata_requirements.h
index 668d6620..69115df7 100644
--- a/include/dwarfs/compression_metadata_requirements.h
+++ b/include/dwarfs/compression_metadata_requirements.h
@@ -31,6 +31,9 @@
 #include <unordered_set>
 
 #include <fmt/format.h>
+#if FMT_VERSION >= 110000
+#include <fmt/ranges.h>
+#endif
 
 #include <nlohmann/json.hpp>
 
diff --git a/include/dwarfs/fragment_category.h b/include/dwarfs/fragment_category.h
index 1a02ebb5..13847098 100644
--- a/include/dwarfs/fragment_category.h
+++ b/include/dwarfs/fragment_category.h
@@ -121,7 +121,7 @@ operator<<(std::ostream& os, fragment_category const& cat) {
 template <>
 struct fmt::formatter<dwarfs::fragment_category> : formatter<std::string> {
   template <typename FormatContext>
-  auto format(dwarfs::fragment_category const& cat, FormatContext& ctx) {
+  auto format(dwarfs::fragment_category const& cat, FormatContext& ctx) const {
     if (cat) {
       if (cat.has_subcategory()) {
         return formatter<std::string>::format(
diff --git a/src/dwarfs/option_map.cpp b/src/dwarfs/option_map.cpp
index d061c81a..249114f7 100644
--- a/src/dwarfs/option_map.cpp
+++ b/src/dwarfs/option_map.cpp
@@ -23,6 +23,9 @@
 #include <vector>
 
 #include <fmt/format.h>
+#if FMT_VERSION >= 110000
+#include <fmt/ranges.h>
+#endif
 
 #include <folly/String.h>
 
diff --git a/src/dwarfs/performance_monitor.cpp b/src/dwarfs/performance_monitor.cpp
index 21351e65..fe3c985a 100644
--- a/src/dwarfs/performance_monitor.cpp
+++ b/src/dwarfs/performance_monitor.cpp
@@ -39,6 +39,9 @@
 #include <folly/stats/Histogram.h>
 
 #include <fmt/format.h>
+#if FMT_VERSION >= 110000
+#include <fmt/ranges.h>
+#endif
 
 #include <dwarfs/file_access.h>
 #include <dwarfs/performance_monitor.h>