diff --git a/sci-mathematics/gimps/gimps-29.4b5.recipe b/sci-mathematics/gimps/gimps-29.4b7.recipe
similarity index 83%
rename from sci-mathematics/gimps/gimps-29.4b5.recipe
rename to sci-mathematics/gimps/gimps-29.4b7.recipe
index f0704032a..16d391f4c 100644
--- a/sci-mathematics/gimps/gimps-29.4b5.recipe
+++ b/sci-mathematics/gimps/gimps-29.4b7.recipe
@@ -9,14 +9,15 @@ eliminate Mersenne numbers with small factors which make up a large proportion \
 of candidates. Pollard's p - 1 algorithm is also used to search for larger \
 factors."
 HOMEPAGE="https://www.mersenne.org/"
-COPYRIGHT="1996-2017 Mersenne Research, Inc."
+COPYRIGHT="1996-2018 Mersenne Research, Inc."
 LICENSE="GIMPS"
 REVISION="1"
-SOURCE_URI="http://www.mersenne.org/ftp_root/gimps/p95v${portVersion//.}.source.zip"
-CHECKSUM_SHA256="21cdd387e73c3386389386b480d0f7f97073dcd70a4dcf9031112f575594443e"
+SOURCE_URI="https://www.mersenne.org/ftp_root/gimps/p95v${portVersion//.}.source.zip"
+CHECKSUM_SHA256="15682e9587af2b86647de9786f97dc8c5d7a4a679a0440f7d1d1936a48c5aa45"
+SOURCE_FILENAME="gimps-prime95-v${portVersion//.}.source.zip"
 SOURCE_DIR=""
 
-ARCHITECTURES="!x86_gcc2 ?x86 !x86_64"
+ARCHITECTURES="!x86_gcc2 x86 !x86_64"
 SECONDARY_ARCHITECTURES="x86"
 
 PROVIDES="