diff --git a/archivers/libdeflate/Makefile b/archivers/libdeflate/Makefile
index 0f8d236c45ac..bc4e5a370603 100644
--- a/archivers/libdeflate/Makefile
+++ b/archivers/libdeflate/Makefile
@@ -1,33 +1,32 @@
 PORTNAME=	libdeflate
-PORTVERSION=	1.14
+PORTVERSION=	1.15
 DISTVERSIONPREFIX=	v
 CATEGORIES=	archivers
 
+PATCH_SITES=	https://github.com/${GH_ACCOUNT}/${GH_PROJECT}/commit/
+PATCHFILES=	98174ac5e6fe2a806923bcb6bfa24cdbf32c79d0.patch:-p1
+
 MAINTAINER=	danfe@FreeBSD.org
 COMMENT=	Fast, whole-buffer DEFLATE-based compression library
 WWW=		https://github.com/ebiggers/libdeflate
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-USES=		gmake
+USES=		cmake:testing pathfix
 USE_GITHUB=	yes
 GH_ACCOUNT=	ebiggers
 USE_LDCONFIG=	yes
-
-MAKE_ARGS=	V=1
-TEST_TARGET=	check
-
-PLIST_FILES=	bin/libdeflate-gunzip bin/libdeflate-gzip \
-		include/libdeflate.h \
-		libdata/pkgconfig/libdeflate.pc \
-		lib/libdeflate.a lib/libdeflate.so lib/libdeflate.so.0
-PORTDOCS=	NEWS.md README.md
+CMAKE_ON=	LIBDEFLATE_USE_SHARED_LIB
+CMAKE_TESTING_ON=	LIBDEFLATE_BUILD_TESTS
 
 OPTIONS_DEFINE=	DOCS
 
+post-patch:
+	@${REINPLACE_CMD} -e '/-O2 -DNDEBUG/d' ${WRKSRC}/CMakeLists.txt
+
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
-	${INSTALL_DATA} ${PORTDOCS:S,^,${WRKSRC}/,} ${STAGEDIR}${DOCSDIR}
+	${INSTALL_DATA} ${WRKSRC}/*.md ${STAGEDIR}${DOCSDIR}
 
 .include <bsd.port.mk>
diff --git a/archivers/libdeflate/distinfo b/archivers/libdeflate/distinfo
index 3c91091c26a8..9a544dd48b48 100644
--- a/archivers/libdeflate/distinfo
+++ b/archivers/libdeflate/distinfo
@@ -1,3 +1,5 @@
-TIMESTAMP = 1662862430
-SHA256 (ebiggers-libdeflate-v1.14_GH0.tar.gz) = 89e7df898c37c3427b0f39aadcf733731321a278771d20fc553f92da8d4808ac
-SIZE (ebiggers-libdeflate-v1.14_GH0.tar.gz) = 180182
+TIMESTAMP = 1670215210
+SHA256 (ebiggers-libdeflate-v1.15_GH0.tar.gz) = 58b95040df7383dc0413defb700d9893c194732474283cc4c8f144b00a68154b
+SIZE (ebiggers-libdeflate-v1.15_GH0.tar.gz) = 180818
+SHA256 (98174ac5e6fe2a806923bcb6bfa24cdbf32c79d0.patch) = 3b80183158aee9c01274258548a938bfa2bf4377ccfb0d6f3277424126068a37
+SIZE (98174ac5e6fe2a806923bcb6bfa24cdbf32c79d0.patch) = 1502
diff --git a/archivers/libdeflate/files/patch-Makefile b/archivers/libdeflate/files/patch-Makefile
deleted file mode 100644
index 66a8a1f66d06..000000000000
--- a/archivers/libdeflate/files/patch-Makefile
+++ /dev/null
@@ -1,29 +0,0 @@
---- Makefile.orig	2022-09-11 02:13:50 UTC
-+++ Makefile
-@@ -54,7 +54,7 @@ override CFLAGS :=							\
- 	      1>&2 2>/dev/null; then echo $(1); fi)
- 
- override CFLAGS :=							\
--	-O2 -fomit-frame-pointer -std=c99 -I. -Wall -Wundef		\
-+	-std=c99 -I. -Wall -Wundef					\
- 	$(call cc-option,-Wdeclaration-after-statement)			\
- 	$(call cc-option,-Wimplicit-fallthrough)			\
- 	$(call cc-option,-Wmissing-prototypes)				\
-@@ -340,7 +340,7 @@ install:all $(PKGCONFBASE)
- 		$(DESTDIR)$(BINDIR)
- 	install -m644 $(STATIC_LIB) $(DESTDIR)$(LIBDIR)
- 	if [ -z "$(DISABLE_SHARED)" ]; then				\
--		install -m755 $(SHARED_LIB) $(DESTDIR)$(LIBDIR);	\
-+		install -s -m755 $(SHARED_LIB) $(DESTDIR)$(LIBDIR);	\
- 	fi
- 	sed -e "s|@PREFIX@|$(PREFIX)|"					\
- 	    -e "s|@LIBDIR@|$(LIBDIR)|"					\
-@@ -349,7 +349,7 @@ install:all $(PKGCONFBASE)
- 	    $(PKGCONFBASE) > $(DESTDIR)$(LIBDIR)/pkgconfig/libdeflate.pc
- 	chmod 644 $(DESTDIR)$(LIBDIR)/pkgconfig/libdeflate.pc
- 	install -m644 libdeflate.h $(DESTDIR)$(INCDIR)
--	install -m755 gzip$(PROG_SUFFIX) \
-+	install -s -m755 gzip$(PROG_SUFFIX) \
- 		$(DESTDIR)$(BINDIR)/libdeflate-gzip$(PROG_SUFFIX)
- 	if [ -n "$(HARD_LINKS)" ]; then					\
- 		ln -f $(DESTDIR)$(BINDIR)/libdeflate-gzip$(PROG_SUFFIX)	\
diff --git a/archivers/libdeflate/pkg-plist b/archivers/libdeflate/pkg-plist
new file mode 100644
index 000000000000..ec65047032dd
--- /dev/null
+++ b/archivers/libdeflate/pkg-plist
@@ -0,0 +1,13 @@
+bin/libdeflate-gunzip
+bin/libdeflate-gzip
+include/libdeflate.h
+lib/cmake/libdeflate/libdeflate-config-version.cmake
+lib/cmake/libdeflate/libdeflate-config.cmake
+lib/cmake/libdeflate/libdeflate-targets-%%CMAKE_BUILD_TYPE%%.cmake
+lib/cmake/libdeflate/libdeflate-targets.cmake
+lib/libdeflate.a
+lib/libdeflate.so
+lib/libdeflate.so.0
+libdata/pkgconfig/libdeflate.pc
+%%PORTDOCS%%%%DOCSDIR%%/NEWS.md
+%%PORTDOCS%%%%DOCSDIR%%/README.md