diff --git a/lib/StartSdk.ts b/lib/StartSdk.ts
index dee1f03..b771f73 100644
--- a/lib/StartSdk.ts
+++ b/lib/StartSdk.ts
@@ -294,7 +294,7 @@ export class StartSdk<Manifest extends SDKManifest, Store, Vault> {
                 integer: boolean
                 min?: number | null
                 max?: number | null
-                step?: string | null
+                step?: number | null
                 units?: string | null
                 placeholder?: string | null
               }
@@ -391,7 +391,7 @@ export class StartSdk<Manifest extends SDKManifest, Store, Vault> {
               min?: number | null
               max?: number | null
               /** Default = '1' */
-              step?: string | null
+              step?: number | null
               integer: boolean
               units?: string | null
               placeholder?: string | null
@@ -426,7 +426,6 @@ export class StartSdk<Manifest extends SDKManifest, Store, Vault> {
               inputmode?: ValueSpecDatetime["inputmode"]
               min?: string | null
               max?: string | null
-              step?: string | null
               disabled?: false | string
             }
           >,
diff --git a/lib/config/builder/list.ts b/lib/config/builder/list.ts
index c25f9b6..6198fc6 100644
--- a/lib/config/builder/list.ts
+++ b/lib/config/builder/list.ts
@@ -141,7 +141,7 @@ export class List<Type, Store, Vault> {
       integer: boolean
       min?: number | null
       max?: number | null
-      step?: string | null
+      step?: number | null
       units?: string | null
       placeholder?: string | null
     },
@@ -187,7 +187,7 @@ export class List<Type, Store, Vault> {
           integer: boolean
           min?: number | null
           max?: number | null
-          step?: string | null
+          step?: number | null
           units?: string | null
           placeholder?: string | null
         }
diff --git a/lib/config/builder/value.ts b/lib/config/builder/value.ts
index 953eee2..89c72c7 100644
--- a/lib/config/builder/value.ts
+++ b/lib/config/builder/value.ts
@@ -299,7 +299,7 @@ export class Value<Type, Store, Vault> {
     min?: number | null
     max?: number | null
     /** Default = '1' */
-    step?: string | null
+    step?: number | null
     integer: boolean
     units?: string | null
     placeholder?: string | null
@@ -337,7 +337,7 @@ export class Value<Type, Store, Vault> {
         min?: number | null
         max?: number | null
         /** Default = '1' */
-        step?: string | null
+        step?: number | null
         integer: boolean
         units?: string | null
         placeholder?: string | null
@@ -429,7 +429,6 @@ export class Value<Type, Store, Vault> {
     inputmode?: ValueSpecDatetime["inputmode"]
     min?: string | null
     max?: string | null
-    step?: string | null
     /**  Immutable means it can only be configed at the first config then never again 
     Default is false */
     immutable?: boolean
@@ -464,7 +463,6 @@ export class Value<Type, Store, Vault> {
         inputmode?: ValueSpecDatetime["inputmode"]
         min?: string | null
         max?: string | null
-        step?: string | null
         disabled?: false | string
       }
     >,
@@ -479,7 +477,6 @@ export class Value<Type, Store, Vault> {
           inputmode: "datetime-local",
           min: null,
           max: null,
-          step: null,
           disabled: false,
           immutable: false,
           ...a,
diff --git a/lib/config/configTypes.ts b/lib/config/configTypes.ts
index 662c918..5bccd56 100644
--- a/lib/config/configTypes.ts
+++ b/lib/config/configTypes.ts
@@ -80,7 +80,6 @@ export interface ValueSpecDatetime extends WithStandalone {
   inputmode: "date" | "time" | "datetime-local"
   min: string | null
   max: string | null
-  step: string | null
   default: string | null
   disabled: false | string
   /** Immutable means it can only be configed at the first config then never again */
@@ -190,7 +189,7 @@ export interface ListValueSpecNumber {
   min: number | null
   max: number | null
   integer: boolean
-  step: string | null
+  step: number | null
   units: string | null
   placeholder: string | null
 }
diff --git a/lib/test/configBuilder.test.ts b/lib/test/configBuilder.test.ts
index 1ea8835..d8f98e0 100644
--- a/lib/test/configBuilder.test.ts
+++ b/lib/test/configBuilder.test.ts
@@ -101,7 +101,6 @@ describe("values", () => {
       inputmode: "date",
       min: null,
       max: null,
-      step: null,
     })
     const validator = value.validator
     validator.unsafeCast("2021-01-01")
@@ -116,7 +115,6 @@ describe("values", () => {
       inputmode: "date",
       min: null,
       max: null,
-      step: null,
     })
     const validator = value.validator
     validator.unsafeCast("2021-01-01")