diff --git a/ext/closer-closer-mop b/ext/closer-closer-mop
index d0acd9cbc778c635d83671ea87cffd3a8f15c24e..4bdfd472c06b6e14e55508405bbf3983c74f8414 160000
--- a/ext/closer-closer-mop
+++ b/ext/closer-closer-mop
@@ -1 +1 @@
-Subproject commit d0acd9cbc778c635d83671ea87cffd3a8f15c24e
+Subproject commit 4bdfd472c06b6e14e55508405bbf3983c74f8414
diff --git a/ext/fare-mop b/ext/fare-mop
index f96da46f50c1abe7c91c629312f27cb433d146af..538aa94590a0354f382eddd9238934763434af30 160000
--- a/ext/fare-mop
+++ b/ext/fare-mop
@@ -1 +1 @@
-Subproject commit f96da46f50c1abe7c91c629312f27cb433d146af
+Subproject commit 538aa94590a0354f382eddd9238934763434af30
diff --git a/ext/fare-utils b/ext/fare-utils
index 16a589ece0aa3ec91afd8f61d2ddf9a83472ebbc..1d9bda2c1a6c7abce885411f58b2318c37b76bbd 160000
--- a/ext/fare-utils
+++ b/ext/fare-utils
@@ -1 +1 @@
-Subproject commit 16a589ece0aa3ec91afd8f61d2ddf9a83472ebbc
+Subproject commit 1d9bda2c1a6c7abce885411f58b2318c37b76bbd
diff --git a/ext/inferior-shell b/ext/inferior-shell
index a67d0dc3c9140353d3be4fb849a29924965816d3..25f0c1c15f38c54272f9f1c81f30797bb7be8d00 160000
--- a/ext/inferior-shell
+++ b/ext/inferior-shell
@@ -1 +1 @@
-Subproject commit a67d0dc3c9140353d3be4fb849a29924965816d3
+Subproject commit 25f0c1c15f38c54272f9f1c81f30797bb7be8d00
diff --git a/tools/asdf-tools.asd b/tools/asdf-tools.asd
index 7afa1dcf56dbc929b2cc3840d306559a1497909a..6f12341c5715c7918b8faab719cd8034359f59ae 100644
--- a/tools/asdf-tools.asd
+++ b/tools/asdf-tools.asd
@@ -1,7 +1,7 @@
 (defsystem "asdf-tools"
   :description "tools to build, test, maintain and release ASDF itself"
   :depends-on ((:version "asdf" "3.1.6")
-               (:version "inferior-shell" "2.0.3.3")
+               (:version "inferior-shell" "2.0.3.4")
                (:version "lisp-invocation/all" "1.0.12")
                (:version "cl-ppcre" "2.0.11")
                (:version "optima.ppcre" "1.0")