diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index db24b44..558dffa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,11 +3,17 @@ on:
   push:
     branches:
       - main
+  workflow_dispatch:
+
 permissions:
   contents: read
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - name: test
-        run: echo "test"
\ No newline at end of file
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: test-file
+        uses: ./
+        with:
+          params-file: ./test.json
\ No newline at end of file
diff --git a/src/aws_ssm.py b/src/aws_ssm.py
index 68fe02e..b957e0a 100644
--- a/src/aws_ssm.py
+++ b/src/aws_ssm.py
@@ -16,8 +16,8 @@ def run(aws_parameters: dict[str, AwsParameter]):
 
 
 if __name__ == '__main__':
-    input_params = os.getenv('INPUT_PARAMS')
-    params_inline = parse_input_params(input_params) if input_params is not None else {}
+    input_params = os.getenv('INPUT_PARAMS', None)
+    params_inline = parse_input_params(input_params) if input_params is not None and input_params != '' else {}
     params_from_file = {}
     params_file_path = os.getenv('INPUT_PARAMS_FILE_PATH')
     if params_file_path is not None and params_file_path != "":
diff --git a/src/inputs.py b/src/inputs.py
index 83ca5ff..e09ecbd 100644
--- a/src/inputs.py
+++ b/src/inputs.py
@@ -31,7 +31,7 @@ def ensure_env_input(input_params: str):
 
 def value_to_aws_parameter(param_name, param_value):
     parsed_value_json = ensure_json_input(param_value)
-    if parsed_value_json is None:
+    if parsed_value_json is None or isinstance(parsed_value_json, dict) is False:
         return AwsParameter(name=param_name, value=param_value)
     value = parsed_value_json.get('value') if parsed_value_json.get('value') is not None else None
     param_type = parsed_value_json.get('type') if parsed_value_json.get('type') is not None else 'String'