diff --git a/math/Imath/Makefile b/math/Imath/Makefile
index d43f3a3f8a38..a973bef0d83b 100644
--- a/math/Imath/Makefile
+++ b/math/Imath/Makefile
@@ -1,8 +1,8 @@
 # Based on the graphics/ilmbase port that was done by: nork@FreeBSD.org
 
 PORTNAME=	Imath
-PORTVERSION=	3.1.5
-PORTREVISION=	1
+PORTVERSION=	3.1.6
+PORTREVISION=	0
 CATEGORIES=	math devel graphics
 
 MAINTAINER=	mandree@FreeBSD.org
@@ -43,7 +43,7 @@ PYTHON_CMAKE_BOOL=	PYTHON
 
 _MAJORVER=	3_1
 _VER=		29
-_MINVER=	4
+_MINVER=	5
 _PLVER=		0
 
 post-patch:
diff --git a/math/Imath/distinfo b/math/Imath/distinfo
index 06b8f8b38e55..c755376e82f2 100644
--- a/math/Imath/distinfo
+++ b/math/Imath/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1648667803
-SHA256 (AcademySoftwareFoundation-Imath-3.1.5-v3.1.5_GH0.tar.gz) = 1e9c7c94797cf7b7e61908aed1f80a331088cc7d8873318f70376e4aed5f25fb
-SIZE (AcademySoftwareFoundation-Imath-3.1.5-v3.1.5_GH0.tar.gz) = 570875
+TIMESTAMP = 1667891465
+SHA256 (AcademySoftwareFoundation-Imath-3.1.6-v3.1.6_GH0.tar.gz) = ea5592230f5ab917bea3ceab266cf38eb4aa4a523078d46eac0f5a89c52304db
+SIZE (AcademySoftwareFoundation-Imath-3.1.6-v3.1.6_GH0.tar.gz) = 573255