diff --git a/sci-libs/dealii/dealii-9.3.1-r1.ebuild b/sci-libs/dealii/dealii-9.3.1-r2.ebuild
similarity index 99%
rename from sci-libs/dealii/dealii-9.3.1-r1.ebuild
rename to sci-libs/dealii/dealii-9.3.1-r2.ebuild
index 04391b957f7fb..c78bf7d245ac2 100644
--- a/sci-libs/dealii/dealii-9.3.1-r1.ebuild
+++ b/sci-libs/dealii/dealii-9.3.1-r2.ebuild
@@ -45,8 +45,7 @@ REQUIRED_USE="
 # accessible. Just fix the version for the time being.
 CAS_VERSION=7.5.3
 
-RDEPEND="dev-libs/boost:=
-	!~dev-libs/boost-1.77.0
+RDEPEND="<dev-libs/boost-1.77.0:=
 	app-arch/bzip2
 	sys-libs/zlib
 	dev-cpp/tbb:=