diff --git a/release/Makefile b/release/Makefile
index 660848761a1..41fa2f3e502 100644
--- a/release/Makefile
+++ b/release/Makefile
@@ -121,5 +121,5 @@ remote: out/opam-full-$(VERSION).tar.gz
 	ssh "$(REMOTE)" "mkdir -p $(REMOTE_DIR)/out"
 	scp Makefile "$(REMOTE):$(REMOTE_DIR)/"
 	scp "$^" "$(REMOTE):$(REMOTE_DIR)/$^"
-	ssh "$(REMOTE)" 'sh -c "cd $(REMOTE_DIR) && $(REMOTE_MAKE) host TAG=$(TAG) VERSION=$(VERSION) OCAMLV=$(OCAMLV)"'
+	ssh "$(REMOTE)" 'sh -c "cd $(REMOTE_DIR) && ulimit -s 8192 && $(REMOTE_MAKE) host TAG=$(TAG) VERSION=$(VERSION) OCAMLV=$(OCAMLV)"'
 	scp "$(REMOTE):$(REMOTE_DIR)/out/opam-$(VERSION)*" out/
diff --git a/release/release.sh b/release/release.sh
index 22b021b2ce5..233c96d315c 100755
--- a/release/release.sh
+++ b/release/release.sh
@@ -4,6 +4,7 @@
 # remotes "some-osx" and "some-openbsd", with the corresponding OSes, ocaml deps
 # installed
 
+LC_ALL=C
 DIR=$(dirname $0)
 cd "$DIR"
 if [[ $# -eq 0 || "x$1" =~ "x-" ]]; then
diff --git a/src_ext/Makefile.sources b/src_ext/Makefile.sources
index b12453f6b9d..1c6f8f26cc1 100644
--- a/src_ext/Makefile.sources
+++ b/src_ext/Makefile.sources
@@ -33,8 +33,8 @@ MD5_dose3 = e7d4b1840383c6732f29a47c08ba5650
 
 $(call PKG_SAME,dose3)
 
-URL_mccs = https://github.com/AltGr/ocaml-mccs/archive/1.1+6.tar.gz
-MD5_mccs = 864333066431caf9ebe3a3e1dc4fb22e
+URL_mccs = https://github.com/AltGr/ocaml-mccs/archive/1.1+7.tar.gz
+MD5_mccs = 9a625017178dab2a661eb765c57b7c45
 
 $(call PKG_SAME,mccs)