diff --git a/tests/apps/python/app-cnb-cron.json b/tests/apps/python/app-cnb-cron.json
new file mode 100644
index 000000000..54d9aa7a1
--- /dev/null
+++ b/tests/apps/python/app-cnb-cron.json
@@ -0,0 +1,29 @@
+{
+  "cron": [
+    {
+      "command": "python3 task.py some cron task",
+      "schedule": "5 5 5 5 5"
+    }
+  ],
+  "healthchecks": {
+    "web": [
+      {
+        "attempts": 2,
+        "content": "python/http.server",
+        "name": "check-1",
+        "path": "/",
+        "timeout": 5,
+        "type": "startup",
+        "wait": 2
+      }
+    ]
+  },
+  "scripts": {
+    "dokku": {
+      // this is a comment for the postdeploy script
+      "postdeploy": "touch /workspace/postdeploy.test",
+      // this is a comment for the predeploy script
+      "predeploy": "touch /workspace/predeploy.test"
+    }
+  }
+}
diff --git a/tests/apps/python/app-cnb.json b/tests/apps/python/app-cnb.json
index 85f5fe7f0..0d7012432 100644
--- a/tests/apps/python/app-cnb.json
+++ b/tests/apps/python/app-cnb.json
@@ -18,4 +18,4 @@
       "predeploy": "touch /workspace/predeploy.test"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/tests/apps/python/app-cron.json b/tests/apps/python/app-cron.json
new file mode 100644
index 000000000..89f2543ce
--- /dev/null
+++ b/tests/apps/python/app-cron.json
@@ -0,0 +1,29 @@
+{
+  "cron": [
+    {
+      "command": "python3 task.py some cron task",
+      "schedule": "5 5 5 5 5"
+    }
+  ],
+  "healthchecks": {
+    "web": [
+      {
+        "attempts": 2,
+        "content": "python/http.server",
+        "name": "check-1",
+        "path": "/",
+        "timeout": 5,
+        "type": "startup",
+        "wait": 2
+      }
+    ]
+  },
+  "scripts": {
+    "dokku": {
+      // this is a comment for the postdeploy script
+      "postdeploy": "touch /app/postdeploy.test",
+      // this is a comment for the predeploy script
+      "predeploy": "touch /app/predeploy.test"
+    }
+  }
+}
\ No newline at end of file
diff --git a/tests/unit/builder-dockerfile.bats b/tests/unit/builder-dockerfile.bats
index 73c5b9c99..ca62231f0 100644
--- a/tests/unit/builder-dockerfile.bats
+++ b/tests/unit/builder-dockerfile.bats
@@ -170,3 +170,43 @@ EOF
   assert_success
   assert_output_contains "SECRET_KEY=fjdkslafjdk"
 }
+
+@test "(builder-dockerfile) cron:run" {
+  run /bin/bash -c "dokku config:set $TEST_APP SECRET_KEY=fjdkslafjdk"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku builder:set $TEST_APP selected dockerfile"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP cron_run_wrapper
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  cron_id="$(dokku cron:list $TEST_APP --format json | jq -r '.[0].id')"
+  run /bin/bash -c "echo $cron_id"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_exists
+
+  run /bin/bash -c "dokku cron:run $TEST_APP $cron_id"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "['task.py', 'some', 'cron', 'task']"
+}
+
+cron_run_wrapper() {
+  local APP="$1"
+  local APP_REPO_DIR="$2"
+  [[ -z "$APP" ]] && local APP="$TEST_APP"
+  APP_REPO_DIR="$(realpath "$APP_REPO_DIR")"
+
+  convert_to_dockerfile "$APP" "$APP_REPO_DIR"
+  mv -f "$APP_REPO_DIR/app-cron.json" "$APP_REPO_DIR/app.json"
+}
diff --git a/tests/unit/builder-herokuish.bats b/tests/unit/builder-herokuish.bats
index fb1536f91..a7a66bc11 100644
--- a/tests/unit/builder-herokuish.bats
+++ b/tests/unit/builder-herokuish.bats
@@ -123,3 +123,42 @@ teardown() {
   assert_success
   assert_output_contains "SECRET_KEY=fjdkslafjdk"
 }
+
+@test "(builder-herokuish) cron:run" {
+  run /bin/bash -c "dokku config:set $TEST_APP SECRET_KEY=fjdkslafjdk"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku builder:set $TEST_APP selected herokuish"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP cron_run_wrapper
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  cron_id="$(dokku cron:list $TEST_APP --format json | jq -r '.[0].id')"
+  run /bin/bash -c "echo $cron_id"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_exists
+
+  run /bin/bash -c "dokku cron:run $TEST_APP $cron_id"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "['task.py', 'some', 'cron', 'task']"
+}
+
+cron_run_wrapper() {
+  local APP="$1"
+  local APP_REPO_DIR="$2"
+  [[ -z "$APP" ]] && local APP="$TEST_APP"
+  APP_REPO_DIR="$(realpath "$APP_REPO_DIR")"
+
+  mv -f "$APP_REPO_DIR/app-cron.json" "$APP_REPO_DIR/app.json"
+}
diff --git a/tests/unit/builder-nixpacks.bats b/tests/unit/builder-nixpacks.bats
index e66a6147a..e7d97af25 100644
--- a/tests/unit/builder-nixpacks.bats
+++ b/tests/unit/builder-nixpacks.bats
@@ -25,7 +25,7 @@ teardown() {
   echo "status: $status"
   assert_success
 
-  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP inject_requirements_txt
+  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP add_requirements_txt
   echo "output: $output"
   echo "status: $status"
   assert_success
@@ -55,7 +55,7 @@ teardown() {
   echo "status: $status"
   assert_success
 
-  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP inject_requirements_txt
+  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP add_requirements_txt
   echo "output: $output"
   echo "status: $status"
   assert_success
@@ -81,9 +81,44 @@ teardown() {
   assert_output_contains "SECRET_KEY=fjdkslafjdk"
 }
 
-inject_requirements_txt() {
+@test "(builder-nixpacks) cron:run" {
+  run /bin/bash -c "dokku config:set $TEST_APP SECRET_KEY=fjdkslafjdk"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku builder:set $TEST_APP selected nixpacks"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP cron_run_wrapper
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_contains 'load build definition from Dockerfile' -1
+  assert_output_contains "SECRET_KEY: fjdkslafjdk"
+
+  cron_id="$(dokku cron:list $TEST_APP --format json | jq -r '.[0].id')"
+  run /bin/bash -c "echo $cron_id"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_exists
+
+  run /bin/bash -c "dokku cron:run $TEST_APP $cron_id"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "['task.py', 'some', 'cron', 'task']"
+}
+
+cron_run_wrapper() {
   local APP="$1"
   local APP_REPO_DIR="$2"
   [[ -z "$APP" ]] && local APP="$TEST_APP"
-  echo "flask" >>"$APP_REPO_DIR/requirements.txt"
+  APP_REPO_DIR="$(realpath "$APP_REPO_DIR")"
+
+  add_requirements_txt "$APP" "$APP_REPO_DIR"
+  mv -f "$APP_REPO_DIR/app-cron.json" "$APP_REPO_DIR/app.json"
 }
diff --git a/tests/unit/builder-pack.bats b/tests/unit/builder-pack.bats
index 55c662149..3721b2e62 100644
--- a/tests/unit/builder-pack.bats
+++ b/tests/unit/builder-pack.bats
@@ -143,3 +143,47 @@ teardown() {
   assert_success
   assert_output_contains '"APP_RESPECTS_ENV_VARS": "1"'
 }
+
+@test "(builder-pack) cron:run" {
+  run /bin/bash -c "dokku config:set $TEST_APP SECRET_KEY=fjdkslafjdk"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku builder:set $TEST_APP selected pack"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP cron_run_wrapper
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_contains 'from cnb stack'
+  assert_output_contains 'Building with buildpack 1' 0
+  assert_output_contains 'Installing dependencies using pip'
+
+  cron_id="$(dokku cron:list $TEST_APP --format json | jq -r '.[0].id')"
+  run /bin/bash -c "echo $cron_id"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_exists
+
+  run /bin/bash -c "dokku cron:run $TEST_APP $cron_id"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "['task.py', 'some', 'cron', 'task']"
+}
+
+cron_run_wrapper() {
+  local APP="$1"
+  local APP_REPO_DIR="$2"
+  [[ -z "$APP" ]] && local APP="$TEST_APP"
+  APP_REPO_DIR="$(realpath "$APP_REPO_DIR")"
+
+  add_requirements_txt "$APP" "$APP_REPO_DIR"
+  ls -lah "$APP_REPO_DIR"
+  mv -f "$APP_REPO_DIR/app-cnb-cron.json" "$APP_REPO_DIR/app.json"
+}
diff --git a/tests/unit/builder-railpack.bats b/tests/unit/builder-railpack.bats
index a904e553b..27cf02663 100644
--- a/tests/unit/builder-railpack.bats
+++ b/tests/unit/builder-railpack.bats
@@ -36,7 +36,7 @@ teardown() {
   echo "status: $status"
   assert_success
 
-  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP inject_requirements_txt
+  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP add_requirements_txt
   echo "output: $output"
   echo "status: $status"
   assert_success
@@ -66,7 +66,7 @@ teardown() {
   echo "status: $status"
   assert_success
 
-  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP inject_requirements_txt
+  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP add_requirements_txt
   echo "output: $output"
   echo "status: $status"
   assert_success
@@ -92,9 +92,44 @@ teardown() {
   assert_output_contains "SECRET_KEY=fjdkslafjdk"
 }
 
-inject_requirements_txt() {
+@test "(builder-railpack) cron:run" {
+  run /bin/bash -c "dokku config:set $TEST_APP SECRET_KEY=fjdkslafjdk"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku builder:set $TEST_APP selected railpack"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run deploy_app python dokku@$DOKKU_DOMAIN:$TEST_APP cron_run_wrapper
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_contains 'create mise config'
+  assert_output_contains 'Successfully built image in'
+
+  cron_id="$(dokku cron:list $TEST_APP --format json | jq -r '.[0].id')"
+  run /bin/bash -c "echo $cron_id"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_exists
+
+  run /bin/bash -c "dokku cron:run $TEST_APP $cron_id"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "['task.py', 'some', 'cron', 'task']"
+}
+
+cron_run_wrapper() {
   local APP="$1"
   local APP_REPO_DIR="$2"
   [[ -z "$APP" ]] && local APP="$TEST_APP"
-  echo "flask" >>"$APP_REPO_DIR/requirements.txt"
+  APP_REPO_DIR="$(realpath "$APP_REPO_DIR")"
+
+  add_requirements_txt "$APP" "$APP_REPO_DIR"
+  mv -f "$APP_REPO_DIR/app-cron.json" "$APP_REPO_DIR/app.json"
 }
diff --git a/tests/unit/test_helper.bash b/tests/unit/test_helper.bash
index 95e89376d..3b581565a 100644
--- a/tests/unit/test_helper.bash
+++ b/tests/unit/test_helper.bash
@@ -574,6 +574,8 @@ add_requirements_txt() {
   local APP="$1"
   local APP_REPO_DIR="$2"
   [[ -z "$APP" ]] && local APP="$TEST_APP"
+  APP_REPO_DIR="$(realpath "$APP_REPO_DIR")"
+
   echo "flask" >>"$APP_REPO_DIR/requirements.txt"
 }
 
@@ -632,6 +634,8 @@ convert_to_dockerfile() {
   local APP="$1"
   local APP_REPO_DIR="$2"
   [[ -z "$APP" ]] && local APP="$TEST_APP"
+  APP_REPO_DIR="$(realpath "$APP_REPO_DIR")"
+
   mv "$APP_REPO_DIR/dockerfile.Dockerfile" "$APP_REPO_DIR/Dockerfile"
 }