diff --git a/lefthook.yml b/lefthook.yml
index ff57725dac684e05fa8cb7000e85533f1a599c71..161ce0b5155568566f94359a430c9ec5f8904fd1 100644
--- a/lefthook.yml
+++ b/lefthook.yml
@@ -18,6 +18,11 @@ pre-push:
       files: git diff --name-only --diff-filter=d $(git merge-base origin/master HEAD)..HEAD
       glob: 'doc/*.md'
       run: yarn markdownlint {files}
+    yamllint:
+      tags: backend style
+      files: git diff --name-only --diff-filter=d $(git merge-base origin/master HEAD)..HEAD
+      glob: '*.{yml,yaml}'
+      run: scripts/lint-yaml.sh {files}
     stylelint:
       tags: stylesheet css style
       files: git diff --name-only --diff-filter=d $(git merge-base origin/master HEAD)..HEAD
diff --git a/scripts/lint-yaml.sh b/scripts/lint-yaml.sh
new file mode 100755
index 0000000000000000000000000000000000000000..c3bd7f2817e11b5f610c0390e66707e51a809b52
--- /dev/null
+++ b/scripts/lint-yaml.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if ! command -v yamllint > /dev/null; then
+  echo "ERROR: yamllint is not installed. For more information, see https://yamllint.readthedocs.io/en/stable/index.html."
+  exit 1
+fi
+
+yamllint --strict -f colored "$@"