Hi Liliana, On Sat, 29 Jul 2023 16:10:06 +0200 Liliana Marie Prikler wrote: > * gnu/packages/java-rdf.scm (%rdf4j-version, %rdf4j-sha256, [..] > +(define %rdf4j-version "3.7.7") is there a reason you chose this version instead of the newest 4.3.4 version? OK, I see: Because commons-rdf4j is 5 years old and depends on exactly that version. Just courious here, I don't want to add too much work for you here, but have you tried to also add or build the 4.3.4 version? Björn