diff --git a/packages/core/src/custom.d.ts b/packages/core/src/custom.d.ts
index b41028e9..d3964e3a 100644
--- a/packages/core/src/custom.d.ts
+++ b/packages/core/src/custom.d.ts
@@ -11,7 +11,3 @@ declare module '*.svg' {
   export default svgUrl;
   export { svgComponent as ReactComponent };
 }
-
-declare const __REACT_FLOW_VERSION__: string;
-declare const __ENV__: string;
-declare const __INJECT_STYLES__: boolean;
diff --git a/packages/core/src/store/initialState.ts b/packages/core/src/store/initialState.ts
index 50e52f26..444deca4 100644
--- a/packages/core/src/store/initialState.ts
+++ b/packages/core/src/store/initialState.ts
@@ -44,8 +44,6 @@ const initialState: ReactFlowStore = {
 
   multiSelectionActive: false,
 
-  reactFlowVersion: typeof __REACT_FLOW_VERSION__ !== 'undefined' ? __REACT_FLOW_VERSION__ : '-',
-
   connectionStartHandle: null,
   connectOnClick: true,
 
diff --git a/packages/core/src/types/general.ts b/packages/core/src/types/general.ts
index b84e71c4..3135ce59 100644
--- a/packages/core/src/types/general.ts
+++ b/packages/core/src/types/general.ts
@@ -167,8 +167,6 @@ export type ReactFlowStore = {
 
   multiSelectionActive: boolean;
 
-  reactFlowVersion: string;
-
   connectionStartHandle: StartHandle | null;
 
   onNodeDragStart?: NodeDragHandler;