diff --git a/math/Imath/Makefile b/math/Imath/Makefile
index 92f5a6a6b6ef..a8dfc492bc43 100644
--- a/math/Imath/Makefile
+++ b/math/Imath/Makefile
@@ -1,7 +1,7 @@
 # Based on the graphics/ilmbase port that was done by: nork@FreeBSD.org
 
 PORTNAME=	Imath
-PORTVERSION=	3.1.4
+PORTVERSION=	3.1.5
 CATEGORIES=	math devel graphics
 
 MAINTAINER=	mandree@FreeBSD.org
@@ -41,7 +41,7 @@ PYTHON_CMAKE_BOOL=	PYTHON
 
 _MAJORVER=	3_1
 _VER=		29
-_MINVER=	3
+_MINVER=	4
 _PLVER=		0
 
 post-patch:
diff --git a/math/Imath/distinfo b/math/Imath/distinfo
index 40e316fa9815..06b8f8b38e55 100644
--- a/math/Imath/distinfo
+++ b/math/Imath/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1643242766
-SHA256 (AcademySoftwareFoundation-Imath-3.1.4-v3.1.4_GH0.tar.gz) = fcca5fbb37d375a252bacd8a29935569bdc28b888f01ef1d9299ca0c9e87c17a
-SIZE (AcademySoftwareFoundation-Imath-3.1.4-v3.1.4_GH0.tar.gz) = 572214
+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