diff --git a/.github/workflows/sorted.yml b/.github/workflows/sorted.yml
new file mode 100644
index 0000000..0de38ff
--- /dev/null
+++ b/.github/workflows/sorted.yml
@@ -0,0 +1,16 @@
+name: Exercise order
+
+on:
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  call-gha-workflow:
+    name: Check
+    uses: exercism/github-actions/.github/workflows/sorted.yml@main
+    with:
+      ordering: ".bucket, .lowercase_name"
diff --git a/bin/sort-practice-exercises b/bin/sort-practice-exercises
new file mode 100644
index 0000000..2ce7c22
--- /dev/null
+++ b/bin/sort-practice-exercises
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+die () { echo "$*" >&2; exit 1; }
+
+(( $# == 2 )) || die "Usage: $0 <comparison-type> <config.json>"
+[[ -r $2 ]] || die "$2 is not a readable file"
+
+tmp=$(mktemp)
+jq -r '
+  # Bucket by displayed difficulty. 0-3: easy; 4-7: medium; 8-10: hard.
+  def bucket(i): [1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3][i];
+  # Code injection to inject the sort literal expression.
+  def sort: sort_by('"$1"');
+  .exercises.practice = (
+    .exercises.practice |
+    # Add displayed difficulty
+    map(.lowercase_name = (.name | ascii_downcase)) |
+    map(.bucket = bucket(.difficulty)) |
+    # Leave hello-world at the top
+    if .[0].slug == "hello-world" then
+      [.[0]] + (.[1:] | sort)
+    else
+      sort
+    end |
+    map(del(.lowercase_name)) |
+    map(del(.bucket))
+  )
+' "$2" > "$tmp" && \
+cat "$tmp" > "$2"
+rm "$tmp"
diff --git a/config.json b/config.json
index db4c6c5..13446e7 100644
--- a/config.json
+++ b/config.json
@@ -206,17 +206,17 @@
         "difficulty": 2
       },
       {
-        "slug": "allergies",
-        "name": "Allergies",
-        "uuid": "dac0e2f8-5ae9-4f06-b9a1-3afe1d44297a",
+        "slug": "all-your-base",
+        "name": "All Your Base",
+        "uuid": "a8eaf0dc-c5ff-46a2-9c47-86f738909db9",
         "practices": [],
         "prerequisites": [],
         "difficulty": 4
       },
       {
-        "slug": "all-your-base",
-        "name": "All Your Base",
-        "uuid": "a8eaf0dc-c5ff-46a2-9c47-86f738909db9",
+        "slug": "allergies",
+        "name": "Allergies",
+        "uuid": "dac0e2f8-5ae9-4f06-b9a1-3afe1d44297a",
         "practices": [],
         "prerequisites": [],
         "difficulty": 4
@@ -229,6 +229,14 @@
         "prerequisites": [],
         "difficulty": 4
       },
+      {
+        "slug": "change",
+        "name": "Change",
+        "uuid": "12eb71ba-b6d0-4edf-af8f-8dbe195d1f27",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 5
+      },
       {
         "slug": "eliuds-eggs",
         "name": "Eliud's Eggs",
@@ -237,6 +245,14 @@
         "prerequisites": [],
         "difficulty": 4
       },
+      {
+        "slug": "flower-field",
+        "name": "Flower Field",
+        "uuid": "1b636fca-bd18-4f54-b4d2-4f5cce1352a9",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 5
+      },
       {
         "slug": "phone-number",
         "name": "Phone Number",
@@ -262,36 +278,20 @@
         "difficulty": 4
       },
       {
-        "slug": "word-count",
-        "name": "Word Count",
-        "uuid": "37104504-e817-4164-9379-c71b81ecd44c",
-        "practices": [],
-        "prerequisites": [],
-        "difficulty": 4
-      },
-      {
-        "slug": "change",
-        "name": "Change",
-        "uuid": "12eb71ba-b6d0-4edf-af8f-8dbe195d1f27",
-        "practices": [],
-        "prerequisites": [],
-        "difficulty": 5
-      },
-      {
-        "slug": "flower-field",
-        "name": "Flower Field",
-        "uuid": "1b636fca-bd18-4f54-b4d2-4f5cce1352a9",
+        "slug": "run-length-encoding",
+        "name": "Run-Length Encoding",
+        "uuid": "e2838aa6-284d-4dc2-9f9e-a81e3c275fb6",
         "practices": [],
         "prerequisites": [],
         "difficulty": 5
       },
       {
-        "slug": "run-length-encoding",
-        "name": "Run-Length Encoding",
-        "uuid": "e2838aa6-284d-4dc2-9f9e-a81e3c275fb6",
+        "slug": "word-count",
+        "name": "Word Count",
+        "uuid": "37104504-e817-4164-9379-c71b81ecd44c",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 5
+        "difficulty": 4
       }
     ]
   },
diff --git a/problem-specifications b/problem-specifications
index 99a6f01..96e23bd 160000
--- a/problem-specifications
+++ b/problem-specifications
@@ -1 +1 @@
-Subproject commit 99a6f01317bb993124cbe8bf8027a1cfdf2dc537
+Subproject commit 96e23bdf2ac750be56674752fa2ae6e42c7b7a33