diff --git a/dev/filter-semver.sh b/dev/filter-semver.sh
index b623018ab..e0841eb15 100755
--- a/dev/filter-semver.sh
+++ b/dev/filter-semver.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Given a full version string, output just the part that is significant for
 # semver. i.e.. 0.x.* becomes 0.x and x.* becomes x for x != 0.
 sed -r \
diff --git a/dev/grant-dm-perms.sh b/dev/grant-dm-perms.sh
index c7151071d..b12ebb4aa 100755
--- a/dev/grant-dm-perms.sh
+++ b/dev/grant-dm-perms.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Grant DM upload permissions on all crates maintained by a DM.
 
 if [ "$#" -ne 1 ]; then
diff --git a/dev/link-patches.sh b/dev/link-patches.sh
index 11d358cc0..5d70e2fdc 100755
--- a/dev/link-patches.sh
+++ b/dev/link-patches.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Symlink {build => src}/$pkg/debian/patches for easier editing.
 #
 # If you give a second argument $2, will create this patch, add Cargo.toml to
diff --git a/dev/list-binpkgs.sh b/dev/list-binpkgs.sh
index b74019cd5..1418e5277 100755
--- a/dev/list-binpkgs.sh
+++ b/dev/list-binpkgs.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # List all packages that produce rust binaries, from this repo.
 grep -l "\[packages.bin\]" src/*/debian/debcargo.toml \
   | cut -d/ -f2 \
diff --git a/dev/list-remaining-deps.sh b/dev/list-remaining-deps.sh
index 070ba7d81..bc7e5d89c 100755
--- a/dev/list-remaining-deps.sh
+++ b/dev/list-remaining-deps.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 abort() { local x=$1; shift; for i in "$@"; do echo >&2 "$0: abort: $i"; done; exit "$x"; }
 
diff --git a/dev/list-rfs.sh b/dev/list-rfs.sh
index 4e0989134..babc86092 100755
--- a/dev/list-rfs.sh
+++ b/dev/list-rfs.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 for i in src/*/debian/RFS; do
     echo "$(git log -1 --pretty="format:%ct" "$i")" "$i"
 done | sort  | while read t i; do
diff --git a/repackage.sh b/repackage.sh
index d001913fe..6b0b40c57 100755
--- a/repackage.sh
+++ b/repackage.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Repackage a crate at the exact version that it was packaged at.
 #
 # Usage: ./repackage.sh <CRATE> [<SEMVER>]
diff --git a/update.sh b/update.sh
index 34a2b4fd7..ae4414897 100755
--- a/update.sh
+++ b/update.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Package or update a new or existing crate.
 #
 # Usage: [REALVER=<EXACTVER>] ./release.sh <CRATE> [<SEMVER>]