diff --git a/math/amath/Makefile b/math/amath/Makefile
index 92f04d8c1c8d..9eeb82dbe3dc 100644
--- a/math/amath/Makefile
+++ b/math/amath/Makefile
@@ -1,7 +1,7 @@
 # $FreeBSD$
 
 PORTNAME=	amath
-PORTVERSION=	1.8.3
+PORTVERSION=	1.8.5
 CATEGORIES=	math
 MASTER_SITES=	http://dist1.innolan.net/ \
 		http://dist2.innolan.net/ \
diff --git a/math/amath/distinfo b/math/amath/distinfo
index 9b10e7f3897e..23376751fc89 100644
--- a/math/amath/distinfo
+++ b/math/amath/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1501059587
-SHA256 (amath-1.8.3.tar.gz) = 2bb005c96429eaf6cd61a7e774e4e2fc1cbf89a2137f68ae741cb8691623c574
-SIZE (amath-1.8.3.tar.gz) = 250255
+TIMESTAMP = 1533821063
+SHA256 (amath-1.8.5.tar.gz) = ed77eb2a367a7462a0d13dc7d2188deb7464f59c166bdc346c3abcd9c0a4e31c
+SIZE (amath-1.8.5.tar.gz) = 250992