diff --git a/sci-visualization/gcalc/gcalc-3.1_rc1-r3.ebuild b/sci-visualization/gcalc/gcalc-3.1_rc1-r4.ebuild
similarity index 88%
rename from sci-visualization/gcalc/gcalc-3.1_rc1-r3.ebuild
rename to sci-visualization/gcalc/gcalc-3.1_rc1-r4.ebuild
index 825f3b99f106f..500b5e9851395 100644
--- a/sci-visualization/gcalc/gcalc-3.1_rc1-r3.ebuild
+++ b/sci-visualization/gcalc/gcalc-3.1_rc1-r4.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2024 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -15,7 +15,7 @@ LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="~amd64"
 
-DEPEND=">=virtual/jdk-1.8:*"
+DEPEND="<virtual/jdk-26:*"	# https://bugs.gentoo.org/965520
 RDEPEND=">=virtual/jre-1.8:*"
 
 JAVA_MAIN_CLASS="net.gcalc.calc.GCalc"