diff --git a/README.md b/README.md
index b3403d7..0d30115 100644
--- a/README.md
+++ b/README.md
@@ -24,9 +24,9 @@ Github action that performs a [Helm](https://helm.sh/) deployment with support f
 - `atomic`: If true, upgrade process rolls back changes made in case of failed upgrade. Defaults to true.
 - `timeout`: specify a timeout for helm deployment
 - `image`: Image to deploy. Overrides the image.name value.
-- `imageFields`: Fields to insert the image name in. Expects JSON encoded array or a string. Defaults to "image.name".
+- `image-fields`: Fields to insert the image name in. Expects JSON encoded array or a string. Defaults to "image.name".
 - `tag`: Image tag to deploy, usually commit sha or Git tag. Overrides the image.tag value.
-- `tagFields`: Fields to insert the image tags in. Expects JSON encoded array or a string. Defaults to "image.tag".
+- `tag-fields`: Fields to insert the image tags in. Expects JSON encoded array or a string. Defaults to "image.tag".
 
 ### Environment
 
diff --git a/action.yml b/action.yml
index edf3947..1f10f04 100644
--- a/action.yml
+++ b/action.yml
@@ -44,13 +44,13 @@ inputs:
   image:
     description: Image to deploy. Overrides the values specified by imageFields.
     required: false
-  imageFields:
+  image-fields:
     description: Fields to insert the image name in. Expects JSON encoded array or a string. Defaults to "image.name".
     required: false
   tag:
     description: Image tag to deploy, usually commit sha or Git tag. Overrides the values specified by tagFields.
     required: false
-  tagFields:
+  tag-fields:
     description: Fields to insert the image tags in. Expects JSON encoded array or a string. Defaults to "image.tag".
     required: false
 runs: