diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ee5cc66..339ae3d 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -28,3 +28,10 @@ repos:
     rev: v0.11.3
     hooks:
       - id: stylua
+  - repo: local
+    hooks:
+      - id: sort-json
+        name: sort json files with jq
+        language: script
+        entry: ./scripts/sort-json.sh
+        files: "(\\.json$|^neovim/packer_snapshots/)"
diff --git a/scripts/sort-json.sh b/scripts/sort-json.sh
new file mode 100755
index 0000000..ddd7157
--- /dev/null
+++ b/scripts/sort-json.sh
@@ -0,0 +1,7 @@
+#! /usr/bin/env bash
+set -e
+
+for f in "$@"; do
+    jq --sort-keys --monochrome-output . "$f" > "$f.tmp"
+    mv "$f.tmp" "$f"
+done