diff --git a/dev-gap/cryst/Manifest b/dev-gap/cryst/Manifest
index ac8edc27361b7..3083103a877da 100644
--- a/dev-gap/cryst/Manifest
+++ b/dev-gap/cryst/Manifest
@@ -1 +1 @@
-DIST cryst-4.1.29.tar.gz 254347 BLAKE2B c305cfb920c89315caafdc6915d4f97d997ceb7f58542b77fa3dd7c8b645804dc6891c4f9b1e72fe70eefe9b8b70539f8710c78207ef093cd16b752b6e2c13be SHA512 618a36ee087f590b76d521f0c0ad6a5c68ca2e12151fbb7efd1641e783811373e120a87001961bcca6903f25ee5e283d60e60de2c818ea8237c66b45e315de37
+DIST cryst-4.1.31.tar.gz 254528 BLAKE2B c4256846d7dfd96fcb0aec0f2940d48943990df032e6b4b5abc2e4097241c6e57d9c5f28ce73e4107b6e7033eafd883e806db3fac8d2b0100fad6c94e5833cda SHA512 181cd4b6e930247a8be6b741d3b80b7c95975dc6d532c9ac9867302f1d33071e873f640e8925d6cd04388061abac69fd4f195014e67849b11cceca4d4bcfe563
diff --git a/dev-gap/cryst/cryst-4.1.29.ebuild b/dev-gap/cryst/cryst-4.1.31.ebuild
similarity index 81%
rename from dev-gap/cryst/cryst-4.1.29.ebuild
rename to dev-gap/cryst/cryst-4.1.31.ebuild
index 0d5455c42dfad..4c14fae07665e 100644
--- a/dev-gap/cryst/cryst-4.1.29.ebuild
+++ b/dev-gap/cryst/cryst-4.1.31.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2025 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -13,7 +13,8 @@ LICENSE="GPL-2+"
 SLOT="0"
 KEYWORDS="~amd64 ~riscv"
 
-RDEPEND="dev-gap/polycyclic"
+RDEPEND="dev-gap/polenta
+	dev-gap/polycyclic"
 
 GAP_PKG_EXTRA_INSTALL=( grp )
 gap-pkg_enable_tests