diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
index 439c9581a..5d733733b 100644
--- a/external/CMakeLists.txt
+++ b/external/CMakeLists.txt
@@ -108,4 +108,4 @@ add_subdirectory(dobby)
 add_subdirectory(fmt)
 add_subdirectory(lsplant/lsplant/src/main/jni)
 add_subdirectory(lsplt/lsplt/src/main/jni)
-target_compile_definitions(fmt-header-only INTERFACE FMT_STATIC_THOUSANDS_SEPARATOR=1 FMT_USE_FLOAT=0 FMT_USE_DOUBLE=0 FMT_USE_LONG_DOUBLE=0)
+target_compile_definitions(fmt-header-only INTERFACE FMT_STATIC_THOUSANDS_SEPARATOR=1 FMT_USE_FLOAT=0 FMT_USE_DOUBLE=0 FMT_USE_LONG_DOUBLE=0 FMT_USE_BITINT=0)
diff --git a/external/fmt b/external/fmt
index 75e892420..db4becabe 160000
--- a/external/fmt
+++ b/external/fmt
@@ -1 +1 @@
-Subproject commit 75e892420ed84a058f0a494d693a6baf5212eac4
+Subproject commit db4becabedb36d6f0f87d70cb96b3353f7a07222