diff --git a/ci/lint/04_install.sh b/ci/lint/04_install.sh
index c936c3089b..f2c8d411d3 100755
--- a/ci/lint/04_install.sh
+++ b/ci/lint/04_install.sh
@@ -17,6 +17,6 @@ ${CI_RETRY_EXE} pip3 install vulture==2.3
 ${CI_RETRY_EXE} pip3 install yq
 ${CI_RETRY_EXE} pip3 install mypy==0.781
 
-SHELLCHECK_VERSION=v0.7.1
+SHELLCHECK_VERSION=v0.7.2
 curl -sL "https://github.com/koalaman/shellcheck/releases/download/${SHELLCHECK_VERSION}/shellcheck-${SHELLCHECK_VERSION}.linux.x86_64.tar.xz" | tar --xz -xf - --directory /tmp/
 export PATH="/tmp/shellcheck-${SHELLCHECK_VERSION}:${PATH}"
diff --git a/test/README.md b/test/README.md
index 0836aef391..c2ec80f07d 100644
--- a/test/README.md
+++ b/test/README.md
@@ -308,7 +308,7 @@ Use the `-v` option for verbose output.
 |-----------|:----------:|:-------------------------------------------:|--------------
 | [`lint-python.sh`](lint/lint-python.sh) | [flake8](https://gitlab.com/pycqa/flake8) | [3.8.3](https://github.com/bitcoin/bitcoin/pull/19348) | `pip3 install flake8==3.8.3`
 | [`lint-python.sh`](lint/lint-python.sh) | [mypy](https://github.com/python/mypy) | [0.781](https://github.com/bitcoin/bitcoin/pull/19348) | `pip3 install mypy==0.781`
-| [`lint-shell.sh`](lint/lint-shell.sh) | [ShellCheck](https://github.com/koalaman/shellcheck) | [0.7.1](https://github.com/bitcoin/bitcoin/pull/19348) | [details...](https://github.com/koalaman/shellcheck#installing)
+| [`lint-shell.sh`](lint/lint-shell.sh) | [ShellCheck](https://github.com/koalaman/shellcheck) | [0.7.2](https://github.com/bitcoin/bitcoin/pull/21749) | [details...](https://github.com/koalaman/shellcheck#installing)
 | [`lint-shell.sh`](lint/lint-shell.sh) | [yq](https://github.com/kislyuk/yq) | default | `pip3 install yq`
 | [`lint-spelling.sh`](lint/lint-spelling.sh) | [codespell](https://github.com/codespell-project/codespell) | [2.0.0](https://github.com/bitcoin/bitcoin/pull/20817) | `pip3 install codespell==2.0.0`
 
diff --git a/test/lint/commit-script-check.sh b/test/lint/commit-script-check.sh
index 766606a720..ecf8039839 100755
--- a/test/lint/commit-script-check.sh
+++ b/test/lint/commit-script-check.sh
@@ -12,7 +12,7 @@
 # one. Any remaining diff signals an error.
 
 export LC_ALL=C
-if test -z "$1"; then
+if test -z $1; then
     echo "Usage: $0 <commit>..."
     exit 1
 fi