diff --git a/math/nlopt/Makefile b/math/nlopt/Makefile
index 4edbc1f6efa8..494d4cd211ad 100644
--- a/math/nlopt/Makefile
+++ b/math/nlopt/Makefile
@@ -1,45 +1,48 @@
 PORTNAME=	nlopt
 DISTVERSIONPREFIX=	v
-DISTVERSION=	2.9.0
+DISTVERSION=	2.9.1
 CATEGORIES=	math
 
 MAINTAINER=	rhurlin@FreeBSD.org
 COMMENT=	Nonlinear optimization library
 WWW=		https://nlopt.readthedocs.io/en/latest/
 
 LICENSE=	LGPL21 MIT
 LICENSE_COMB=	multi
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BROKEN_armv6=	fails to package: Unable to access file site-packages/_nlopt.a:No such file or directory
 BROKEN_armv7=	fails to package: Unable to access file site-packages/_nlopt.a:No such file or directory
 
 FLAVORS=	full minimal
 
 USES=		cmake:testing
 USE_GITHUB=	yes
 GH_ACCOUNT=	stevengj
 USE_LDCONFIG=	yes
 
+# 'make test': 100% tests passed, 0 tests failed out of 83
+CMAKE_ON=	NLOPT_TESTS
+
 .if ${FLAVOR:U} == minimal
 PKGNAMESUFFIX=	-${FLAVOR}
 CMAKE_OFF=	NLOPT_GUILE NLOPT_PYTHON NLOPT_SWIG
 CONFLICTS_INSTALL=	${PORTNAME}
 .else
 USES+=		guile:3.0,alias localbase pkgconfig python
 BUILD_DEPENDS=	swig:devel/swig ${PYNUMPY}
 # Because guile-config-3.0 crashes, nlopt avoids this by using
 # files/patch-cmake_FindGuile.cmake and setting GUILE_EXECUTABLE
 # and GUILE_CONFIG_EXECUTABLE
 MAKE_ENV+=	GUILE_EXECUTABLE=${PREFIX}/bin/guile3 \
 		GUILE_CONFIG_EXECUTABLE=${PREFIX}/bin/guile-config-3
 RUN_DEPENDS=	${PYNUMPY}
 CONFLICTS_INSTALL=	${PORTNAME}-minimal
 PLIST_FILES+=	lib/guile/3.0/extensions/nlopt_guile.so \
 		%%PYTHON_SITELIBDIR%%/_nlopt.so \
-		%%PYTHON_SITELIBDIR%%/nlopt-2.9.0.dist-info/METADATA \
+		%%PYTHON_SITELIBDIR%%/nlopt-2.9.1.dist-info/METADATA \
 		${PYTHON_SITELIBDIR}/nlopt.py \
 		${GUILE_SITE_DIR}/nlopt.scm
 .endif
 
 .include <bsd.port.mk>
diff --git a/math/nlopt/distinfo b/math/nlopt/distinfo
index 253c1e88d3a0..de3256df6bc9 100644
--- a/math/nlopt/distinfo
+++ b/math/nlopt/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1731392424
-SHA256 (stevengj-nlopt-v2.9.0_GH0.tar.gz) = 6e899e297485e457ec1bf84844de29921aeef674f9d5caf60277df45dca6ff76
-SIZE (stevengj-nlopt-v2.9.0_GH0.tar.gz) = 2054092
+TIMESTAMP = 1732643048
+SHA256 (stevengj-nlopt-v2.9.1_GH0.tar.gz) = 1e6c33f8cbdc4138d525f3326c231f14ed50d99345561e85285638c49b64ee93
+SIZE (stevengj-nlopt-v2.9.1_GH0.tar.gz) = 2054775