diff --git a/science/PETSc/Makefile b/science/PETSc/Makefile
index 633c0b7345dd0..c6d6d7bff073d 100644
--- a/science/PETSc/Makefile
+++ b/science/PETSc/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=	PETSc
-DISTVERSION=	3.18.3
+DISTVERSION=	3.18.4
 CATEGORIES=	science devel
 MASTER_SITES=	https://ftp.mcs.anl.gov/pub/petsc/release-snapshots/
 DISTNAME=	${PORTNAME:tl}-${DISTVERSION}
diff --git a/science/PETSc/distinfo b/science/PETSc/distinfo
index 2541688b01aac..83a16e7b8aaae 100644
--- a/science/PETSc/distinfo
+++ b/science/PETSc/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1672460320
-SHA256 (petsc-3.18.3.tar.gz) = 8aaa005479c8ec2eed2b9cbb067cfc1ac0900b0de2176439f0d4f21e09c2020b
-SIZE (petsc-3.18.3.tar.gz) = 18419852
+TIMESTAMP = 1676021048
+SHA256 (petsc-3.18.4.tar.gz) = 6173d30637261c5b740c0bea14747759200ca2012c7343139f9216bc296a6394
+SIZE (petsc-3.18.4.tar.gz) = 16313900
diff --git a/science/PETSc/pkg-plist b/science/PETSc/pkg-plist
index d8c6beb27bfdd..ac818fdf19433 100644
--- a/science/PETSc/pkg-plist
+++ b/science/PETSc/pkg-plist
@@ -5915,6 +5915,7 @@ libdata/pkgconfig/petsc.pc
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/eptorsion1.c
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/eptorsion2.c
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/eptorsion2f.F90
+%%DATADIR%%/examples/src/tao/unconstrained/tutorials/eptorsion3.c
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/makefile
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/minsurf1.c
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/minsurf2.c
@@ -5932,6 +5933,7 @@ libdata/pkgconfig/petsc.pc
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/output/eptorsion2f_1.out
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/output/eptorsion2f_2.out
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/output/eptorsion2f_3.out
+%%DATADIR%%/examples/src/tao/unconstrained/tutorials/output/eptorsion3_1.out
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/output/minsurf1_1.out
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/output/minsurf1_10.out
 %%DATADIR%%/examples/src/tao/unconstrained/tutorials/output/minsurf1_11.out