--- a/cad/klayout/Makefile
+++ b/cad/klayout/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=      klayout
-PORTVERSION=   0.28.3
+PORTVERSION=   0.28.8
 DISTVERSIONPREFIX=     v
 CATEGORIES=    cad

diff --git a/cad/klayout/distinfo b/cad/klayout/distinfo
index d97c58074bc4..fc2e5d632942 100644
--- a/cad/klayout/distinfo
+++ b/cad/klayout/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1673633060
-SHA256 (KLayout-klayout-v0.28.3_GH0.tar.gz) = b85229193baecf1533215c5a2382ad89b69589cbd345cf373b6a29e01ae9cbba
-SIZE (KLayout-klayout-v0.28.3_GH0.tar.gz) = 84567390
+TIMESTAMP = 1685883691
+SHA256 (KLayout-klayout-v0.28.8_GH0.tar.gz) = f4edfc84dcae7131d7b74622ccb6e52a168070b5581af78b2b9f0eb01cb9d707
+SIZE (KLayout-klayout-v0.28.8_GH0.tar.gz) = 88377411