diff --git a/math/py-spot/Makefile b/math/py-spot/Makefile
index 4ca211134c37..eda5daa20cc3 100644
--- a/math/py-spot/Makefile
+++ b/math/py-spot/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=	spot
-DISTVERSION=	2.11
+DISTVERSION=	2.11.1
 CATEGORIES=	math
 MASTER_SITES=	http://www.lrde.epita.fr/dload/${PORTNAME}/
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
diff --git a/math/py-spot/distinfo b/math/py-spot/distinfo
index 5e2f302d1eb1..d745dea8ef31 100644
--- a/math/py-spot/distinfo
+++ b/math/py-spot/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1665335836
-SHA256 (spot-2.11.tar.gz) = 5b20541f876b8cacb1df1a07fe18175e81345ac93030a11f3691d2b516b59679
-SIZE (spot-2.11.tar.gz) = 7547899
+TIMESTAMP = 1665420342
+SHA256 (spot-2.11.1.tar.gz) = 2a03281dceb36df2515c3307cf452d578ee0db1a0ea0b321cc42d36df4f6d70b
+SIZE (spot-2.11.1.tar.gz) = 7557763
diff --git a/math/spot/Makefile b/math/spot/Makefile
index 53d406775a0d..5c46eacd16f0 100644
--- a/math/spot/Makefile
+++ b/math/spot/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=	spot
-DISTVERSION=	2.11
+DISTVERSION=	2.11.1
 CATEGORIES=	math
 MASTER_SITES=	http://www.lrde.epita.fr/dload/${PORTNAME}/
 
diff --git a/math/spot/distinfo b/math/spot/distinfo
index 7601ff9d3606..696c7aef1196 100644
--- a/math/spot/distinfo
+++ b/math/spot/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1665334301
-SHA256 (spot-2.11.tar.gz) = 5b20541f876b8cacb1df1a07fe18175e81345ac93030a11f3691d2b516b59679
-SIZE (spot-2.11.tar.gz) = 7547899
+TIMESTAMP = 1665419720
+SHA256 (spot-2.11.1.tar.gz) = 2a03281dceb36df2515c3307cf452d578ee0db1a0ea0b321cc42d36df4f6d70b
+SIZE (spot-2.11.1.tar.gz) = 7557763
diff --git a/math/spot/files/patch-spot_twaalgos_hoa.hh b/math/spot/files/patch-spot_twaalgos_hoa.hh
deleted file mode 100644
index 402f36099c4a..000000000000
--- a/math/spot/files/patch-spot_twaalgos_hoa.hh
+++ /dev/null
@@ -1,12 +0,0 @@
-- workaround for https://gitlab.lre.epita.fr/spot/spot/-/issues/515
-
---- spot/twaalgos/hoa.hh.orig	2022-10-09 17:09:51 UTC
-+++ spot/twaalgos/hoa.hh
-@@ -23,6 +23,7 @@
- #include <spot/misc/common.hh>
- #include <spot/twa/fwd.hh>
- #include <vector>
-+#include <unordered_map>
- #include <utility>
- #include <functional>
- #include <bddx.h>
diff --git a/math/vtk9/Makefile.version b/math/vtk9/Makefile.version
new file mode 100644
index 000000000000..66ceb4b6ed8f
--- /dev/null
+++ b/math/vtk9/Makefile.version
@@ -0,0 +1,3 @@
+# this file is provided for VTK users
+
+VTK_VER=9.2