diff --git a/thirdparty/README.md b/thirdparty/README.md
index c22ef77af7..52b635df05 100644
--- a/thirdparty/README.md
+++ b/thirdparty/README.md
@@ -539,7 +539,7 @@ Patches:
 ## libjpeg-turbo
 
 - Upstream: https://github.com/libjpeg-turbo/libjpeg-turbo
-- Version: 3.1.0 (20ade4dea9589515a69793e447a6c6220b464535, 2024)
+- Version: 3.1.3 (af9c1c268520a29adf98cad5138dafe612b3d318, 2025)
 - License: BSD-3-Clause and IJG
 
 Files extracted from upstream source:
diff --git a/thirdparty/libjpeg-turbo/src/turbojpeg.c b/thirdparty/libjpeg-turbo/src/turbojpeg.c
index 45fc0f954c..d514da43d2 100644
--- a/thirdparty/libjpeg-turbo/src/turbojpeg.c
+++ b/thirdparty/libjpeg-turbo/src/turbojpeg.c
@@ -1196,9 +1196,6 @@ bailout:
 #define BITS_IN_JSAMPLE  12
 #include "turbojpeg-mp.c"
 #undef BITS_IN_JSAMPLE
-#define BITS_IN_JSAMPLE  16
-#include "turbojpeg-mp.c"
-#undef BITS_IN_JSAMPLE
 
 /* TurboJPEG 1.2+ */
 DLLEXPORT int tjCompress2(tjhandle handle, const unsigned char *srcBuf,