diff --git a/science/py-dlib/Makefile b/science/py-dlib/Makefile
index 520f5dc60851..f2135995472e 100644
--- a/science/py-dlib/Makefile
+++ b/science/py-dlib/Makefile
@@ -1,38 +1,37 @@
 PORTNAME=	dlib
-DISTVERSION=	19.24.6
-PORTREVISION=	2
+DISTVERSION=	19.24.9
 CATEGORIES=	science devel math python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	arrowd@FreeBSD.org
 COMMENT=	Machine learning framework written in C++ (python bindings)
 WWW=		http://dlib.net
 
 LICENSE=	BSL
 LICENSE_FILE=	${WRKSRC}/dlib/LICENSE.txt
 
 LIB_DEPENDS=		${PY_BOOST} \
 			libpng.so:graphics/png \
 			libgif.so:graphics/giflib
 
 USES=			cmake:indirect compiler:c++11-lang pkgconfig python shebangfix \
 			sqlite xorg
 USE_PYTHON=		autoplist distutils
 USE_XORG=		ice sm x11 xext
 SHEBANG_FILES=		python_examples/*.py
 
 OPTIONS_DEFINE=		BLASLAPACK
 
 BLASLAPACK_DESC=	Use OpenBLAS for matrix operations
 
 BLASLAPACK_USES=	blaslapack:openblas
 BLASLAPACK_VARS_OFF=	blaslapackargs="--no DLIB_USE_BLAS --no DLIB_USE_LAPACK"
 
 PYDISTUTILS_BUILDARGS=	--set BOOST_PYTHON_SUFFIX:STRING=${PYTHON_SUFFIX} ${X11ARGS} ${JPEGARGS} ${PNGARGS} ${GIFARGS} ${SQLITEARGS} ${BLASLAPACKARGS} ${AVXARGS} ${BLASLAPACK}
 
 # due to a build system bug the code gets recompiled twice during "build" and "stage"
 do-build:
 	@${DO_NADA}
 
 .include <bsd.port.mk>
diff --git a/science/py-dlib/distinfo b/science/py-dlib/distinfo
index 93f2a9e4be33..02631ed74b01 100644
--- a/science/py-dlib/distinfo
+++ b/science/py-dlib/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1729934493
-SHA256 (dlib-19.24.6.tar.gz) = 77e3c28ac2c66141514b07cbb74b7c7f80381c019ce5fec99007980bc6490d7d
-SIZE (dlib-19.24.6.tar.gz) = 3374495
+TIMESTAMP = 1747503281
+SHA256 (dlib-19.24.9.tar.gz) = 211a233d1883f6340719b8f5c6a51fad7446702a1d2c7024e4a5053e599f7fb5
+SIZE (dlib-19.24.9.tar.gz) = 3390387
diff --git a/science/py-dlib/files/patch-dlib_serialize.h b/science/py-dlib/files/patch-dlib_serialize.h
deleted file mode 100644
index 94306df64159..000000000000
--- a/science/py-dlib/files/patch-dlib_serialize.h
+++ /dev/null
@@ -1,11 +0,0 @@
---- dlib/serialize.h.orig	2024-02-17 21:44:22 UTC
-+++ dlib/serialize.h
-@@ -639,6 +639,8 @@ namespace dlib
-     USE_DEFAULT_INT_SERIALIZATION_FOR(wchar_t)
- #endif
- 
-+    USE_DEFAULT_INT_SERIALIZATION_FOR(char32_t)
-+
- // ----------------------------------------------------------------------------------------
- 
-     inline void serialize(
diff --git a/science/py-dlib/files/patch-dlib_unicode_unicode.h b/science/py-dlib/files/patch-dlib_unicode_unicode.h
deleted file mode 100644
index 4527fdc054b0..000000000000
--- a/science/py-dlib/files/patch-dlib_unicode_unicode.h
+++ /dev/null
@@ -1,11 +0,0 @@
---- dlib/unicode/unicode.h.orig	2024-02-17 21:44:22 UTC
-+++ dlib/unicode/unicode.h
-@@ -16,7 +16,7 @@ namespace dlib
- 
- // ----------------------------------------------------------------------------------------
- 
--    using unichar = uint32;
-+    using unichar = char32_t;
-     using ustring = std::basic_string<unichar>;
- 
- // ----------------------------------------------------------------------------------------