diff --git a/plugins/catalog-graph/api-report.md b/plugins/catalog-graph/api-report.md
index eac7351c33..e477fb13d9 100644
--- a/plugins/catalog-graph/api-report.md
+++ b/plugins/catalog-graph/api-report.md
@@ -30,7 +30,7 @@ export const CatalogGraphPage: (props: {
         mergeRelations?: boolean | undefined;
         direction?: Direction | undefined;
         showFilters?: boolean | undefined;
-        curve?: Curve | undefined;
+        curve?: 'curveStepBefore' | 'curveMonotoneX' | undefined;
       }
     | undefined;
 }) => JSX.Element;
@@ -55,9 +55,6 @@ export const catalogGraphPlugin: BackstagePlugin<
 // @public
 export const catalogGraphRouteRef: RouteRef<undefined>;
 
-// @public
-export type Curve = 'curveStepBefore' | 'curveMonotoneX';
-
 // @public
 export enum Direction {
   BOTTOM_TOP = 'BT',
@@ -123,7 +120,7 @@ export const EntityRelationsGraph: (props: {
   renderLabel?:
     | DependencyGraphTypes.RenderLabelFunction<EntityEdge>
     | undefined;
-  curve?: Curve | undefined;
+  curve?: 'curveStepBefore' | 'curveMonotoneX' | undefined;
 }) => JSX.Element;
 
 // @public
diff --git a/plugins/catalog-graph/src/components/CatalogGraphPage/CatalogGraphPage.tsx b/plugins/catalog-graph/src/components/CatalogGraphPage/CatalogGraphPage.tsx
index 38fcdad918..a6a6c2a711 100644
--- a/plugins/catalog-graph/src/components/CatalogGraphPage/CatalogGraphPage.tsx
+++ b/plugins/catalog-graph/src/components/CatalogGraphPage/CatalogGraphPage.tsx
@@ -35,7 +35,6 @@ import React, { MouseEvent, useCallback } from 'react';
 import { useNavigate } from 'react-router';
 import {
   ALL_RELATION_PAIRS,
-  Curve,
   Direction,
   EntityNode,
   EntityRelationsGraph,
@@ -112,7 +111,7 @@ export const CatalogGraphPage = (props: {
     mergeRelations?: boolean;
     direction?: Direction;
     showFilters?: boolean;
-    curve?: Curve;
+    curve?: 'curveStepBefore' | 'curveMonotoneX';
   };
 }) => {
   const { relationPairs = ALL_RELATION_PAIRS, initialState } = props;
diff --git a/plugins/catalog-graph/src/components/CatalogGraphPage/CurveFilter.tsx b/plugins/catalog-graph/src/components/CatalogGraphPage/CurveFilter.tsx
index b508d48172..6cda334cf1 100644
--- a/plugins/catalog-graph/src/components/CatalogGraphPage/CurveFilter.tsx
+++ b/plugins/catalog-graph/src/components/CatalogGraphPage/CurveFilter.tsx
@@ -16,8 +16,8 @@
 import { Select } from '@backstage/core-components';
 import { Box } from '@material-ui/core';
 import React, { useCallback } from 'react';
-import { Curve } from '../EntityRelationsGraph';
 
+type Curve = 'curveStepBefore' | 'curveMonotoneX';
 const CURVE_DISPLAY_NAMES: Record<Curve, string> = {
   curveMonotoneX: 'Monotone X',
   curveStepBefore: 'Step Before',
@@ -25,10 +25,10 @@ const CURVE_DISPLAY_NAMES: Record<Curve, string> = {
 
 export type Props = {
   value: Curve;
-  onChange: (value: Curve) => void;
+  onChange: (value: 'curveStepBefore' | 'curveMonotoneX') => void;
 };
 
-const curves: Curve[] = ['curveMonotoneX', 'curveStepBefore'];
+const curves: Array<Curve> = ['curveMonotoneX', 'curveStepBefore'];
 
 export const CurveFilter = ({ value, onChange }: Props) => {
   const handleChange = useCallback(v => onChange(v as Curve), [onChange]);
diff --git a/plugins/catalog-graph/src/components/CatalogGraphPage/useCatalogGraphPage.ts b/plugins/catalog-graph/src/components/CatalogGraphPage/useCatalogGraphPage.ts
index 9126f5aef5..43da53c44a 100644
--- a/plugins/catalog-graph/src/components/CatalogGraphPage/useCatalogGraphPage.ts
+++ b/plugins/catalog-graph/src/components/CatalogGraphPage/useCatalogGraphPage.ts
@@ -29,7 +29,7 @@ import {
 } from 'react';
 import { useLocation } from 'react-router';
 import usePrevious from 'react-use/lib/usePrevious';
-import { Direction, Curve } from '../EntityRelationsGraph';
+import { Direction } from '../EntityRelationsGraph';
 
 export type CatalogGraphPageValue = {
   rootEntityNames: CompoundEntityRef[];
@@ -46,8 +46,10 @@ export type CatalogGraphPageValue = {
   setMergeRelations: Dispatch<React.SetStateAction<boolean>>;
   direction: Direction;
   setDirection: Dispatch<React.SetStateAction<Direction>>;
-  curve: Curve;
-  setCurve: Dispatch<React.SetStateAction<Curve>>;
+  curve: 'curveStepBefore' | 'curveMonotoneX';
+  setCurve: Dispatch<
+    React.SetStateAction<'curveStepBefore' | 'curveMonotoneX'>
+  >;
   showFilters: boolean;
   toggleShowFilters: DispatchWithoutAction;
 };
@@ -64,7 +66,7 @@ export function useCatalogGraphPage({
     mergeRelations?: boolean;
     direction?: Direction;
     showFilters?: boolean;
-    curve?: Curve;
+    curve?: 'curveStepBefore' | 'curveMonotoneX';
   };
 }): CatalogGraphPageValue {
   const location = useLocation();
@@ -80,7 +82,7 @@ export function useCatalogGraphPage({
         mergeRelations?: string[] | string;
         direction?: string[] | Direction;
         showFilters?: string[] | string;
-        curve?: string[] | Curve;
+        curve?: string[] | 'curveStepBefore' | 'curveMonotoneX';
       },
     [location.search],
   );
@@ -126,7 +128,7 @@ export function useCatalogGraphPage({
       ? query.direction
       : initialState?.direction ?? Direction.LEFT_RIGHT,
   );
-  const [curve, setCurve] = useState<Curve>(() =>
+  const [curve, setCurve] = useState<'curveStepBefore' | 'curveMonotoneX'>(() =>
     typeof query.curve === 'string'
       ? query.curve
       : initialState?.curve ?? 'curveMonotoneX',
diff --git a/plugins/catalog-graph/src/components/EntityRelationsGraph/EntityRelationsGraph.tsx b/plugins/catalog-graph/src/components/EntityRelationsGraph/EntityRelationsGraph.tsx
index c6027e3e12..c0e2f610c1 100644
--- a/plugins/catalog-graph/src/components/EntityRelationsGraph/EntityRelationsGraph.tsx
+++ b/plugins/catalog-graph/src/components/EntityRelationsGraph/EntityRelationsGraph.tsx
@@ -29,7 +29,7 @@ import React, { MouseEvent, useEffect, useMemo } from 'react';
 import { CustomLabel } from './CustomLabel';
 import { CustomNode } from './CustomNode';
 import { ALL_RELATION_PAIRS, RelationPairs } from './relations';
-import { Curve, Direction, EntityEdge, EntityNode } from './types';
+import { Direction, EntityEdge, EntityNode } from './types';
 import { useEntityRelationNodesAndEdges } from './useEntityRelationNodesAndEdges';
 
 const useStyles = makeStyles(theme => ({
@@ -82,7 +82,7 @@ export const EntityRelationsGraph = (props: {
   zoom?: 'enabled' | 'disabled' | 'enable-on-click';
   renderNode?: DependencyGraphTypes.RenderNodeFunction<EntityNode>;
   renderLabel?: DependencyGraphTypes.RenderLabelFunction<EntityEdge>;
-  curve?: Curve;
+  curve?: 'curveStepBefore' | 'curveMonotoneX';
 }) => {
   const {
     rootEntityNames,
diff --git a/plugins/catalog-graph/src/components/EntityRelationsGraph/index.ts b/plugins/catalog-graph/src/components/EntityRelationsGraph/index.ts
index 72125cb595..b86c8f05ae 100644
--- a/plugins/catalog-graph/src/components/EntityRelationsGraph/index.ts
+++ b/plugins/catalog-graph/src/components/EntityRelationsGraph/index.ts
@@ -22,5 +22,4 @@ export type {
   EntityEdge,
   EntityNodeData,
   EntityNode,
-  Curve,
 } from './types';
diff --git a/plugins/catalog-graph/src/components/EntityRelationsGraph/types.ts b/plugins/catalog-graph/src/components/EntityRelationsGraph/types.ts
index 68f81e5577..caf6c8c501 100644
--- a/plugins/catalog-graph/src/components/EntityRelationsGraph/types.ts
+++ b/plugins/catalog-graph/src/components/EntityRelationsGraph/types.ts
@@ -108,13 +108,3 @@ export enum Direction {
    */
   RIGHT_LEFT = 'RL',
 }
-
-/**
- *  Graph curve factory
- *
- * @public
- *
- * @see {@link @types/d3-shape/index.d.ts#curveMonotoneX}
- * @see {@link @types/d3-shape/index.d.ts#curveStepBefore}
- */
-export type Curve = 'curveStepBefore' | 'curveMonotoneX';