diff --git a/public/app/plugins/datasource/cloudwatch/components/VariableQueryEditor/VariableQueryEditor.test.tsx b/public/app/plugins/datasource/cloudwatch/components/VariableQueryEditor/VariableQueryEditor.test.tsx
index a5f5414da48..ae31f7b755b 100644
--- a/public/app/plugins/datasource/cloudwatch/components/VariableQueryEditor/VariableQueryEditor.test.tsx
+++ b/public/app/plugins/datasource/cloudwatch/components/VariableQueryEditor/VariableQueryEditor.test.tsx
@@ -149,7 +149,7 @@ describe('VariableEditor', () => {
         // change filter key
         const keySelect = screen.getByRole('combobox', { name: 'Dimensions filter key' });
         // confirms getDimensionKeys was called with filter and that the element uses keysForDimensionFilter
-        await select(keySelect, 'v4', {
+        select(keySelect, 'v4', {
           container: document.body,
         });
         expect(ds.datasource.resources.getDimensionKeys).toHaveBeenCalledWith({
@@ -158,14 +158,16 @@ describe('VariableEditor', () => {
           metricName: 'i3',
           dimensionFilters: undefined,
         });
-        expect(onChange).toHaveBeenCalledWith({
-          ...defaultQuery,
-          queryType: VariableQueryType.DimensionValues,
-          namespace: 'z2',
-          region: 'a1',
-          metricName: 'i3',
-          dimensionKey: 's4',
-          dimensionFilters: { v4: undefined },
+        await waitFor(() => {
+          expect(onChange).toHaveBeenCalledWith({
+            ...defaultQuery,
+            queryType: VariableQueryType.DimensionValues,
+            namespace: 'z2',
+            region: 'a1',
+            metricName: 'i3',
+            dimensionKey: 's4',
+            dimensionFilters: { v4: undefined },
+          });
         });
 
         // set filter value
diff --git a/public/app/plugins/datasource/cloudwatch/components/VariableQueryEditor/VariableQueryEditor.tsx b/public/app/plugins/datasource/cloudwatch/components/VariableQueryEditor/VariableQueryEditor.tsx
index a0f6b550306..262b57c9a77 100644
--- a/public/app/plugins/datasource/cloudwatch/components/VariableQueryEditor/VariableQueryEditor.tsx
+++ b/public/app/plugins/datasource/cloudwatch/components/VariableQueryEditor/VariableQueryEditor.tsx
@@ -37,12 +37,11 @@ const queryTypes: Array<{ value: string; label: string }> = [
 export const VariableQueryEditor = ({ query, datasource, onChange }: Props) => {
   const parsedQuery = migrateVariableQuery(query);
 
-  const { region, namespace, metricName, dimensionKey, dimensionFilters } = parsedQuery;
+  const { region, namespace, metricName, dimensionKey } = parsedQuery;
   const [regions, regionIsLoading] = useRegions(datasource);
   const namespaces = useNamespaces(datasource);
   const metrics = useMetrics(datasource, { region, namespace });
   const dimensionKeys = useDimensionKeys(datasource, { region, namespace, metricName });
-  const keysForDimensionFilter = useDimensionKeys(datasource, { region, namespace, metricName, dimensionFilters });
   const accountState = useAccountOptions(datasource.resources, query.region);
 
   const newFormStylingEnabled = config.featureToggles.awsDatasourcesNewFormStyling;
@@ -188,7 +187,6 @@ export const VariableQueryEditor = ({ query, datasource, onChange }: Props) => {
                 onChange={(dimensions) => {
                   onChange({ ...parsedQuery, dimensionFilters: dimensions });
                 }}
-                dimensionKeys={keysForDimensionFilter}
                 disableExpressions={true}
                 datasource={datasource}
               />
@@ -205,7 +203,6 @@ export const VariableQueryEditor = ({ query, datasource, onChange }: Props) => {
                 onChange={(dimensions) => {
                   onChange({ ...parsedQuery, dimensionFilters: dimensions });
                 }}
-                dimensionKeys={keysForDimensionFilter}
                 disableExpressions={true}
                 datasource={datasource}
               />
diff --git a/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/Dimensions.test.tsx b/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/Dimensions.test.tsx
index d0b545a63c2..846d7209a58 100644
--- a/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/Dimensions.test.tsx
+++ b/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/Dimensions.test.tsx
@@ -43,8 +43,8 @@ describe('Dimensions', () => {
         InstanceId: '*',
         InstanceGroup: 'Group1',
       };
-      render(<Dimensions {...props} metricStat={props.query} dimensionKeys={[]} />);
-      const filterItems = screen.getAllByTestId('cloudwatch-dimensions-filter-item');
+      render(<Dimensions {...props} metricStat={props.query} />);
+      const filterItems = await screen.findAllByTestId('cloudwatch-dimensions-filter-item');
       expect(filterItems.length).toBe(2);
 
       expect(within(filterItems[0]).getByText('InstanceId')).toBeInTheDocument();
@@ -61,8 +61,8 @@ describe('Dimensions', () => {
         InstanceId: ['*'],
         InstanceGroup: ['Group1'],
       };
-      render(<Dimensions {...props} metricStat={props.query} dimensionKeys={[]} />);
-      const filterItems = screen.getAllByTestId('cloudwatch-dimensions-filter-item');
+      render(<Dimensions {...props} metricStat={props.query} />);
+      const filterItems = await screen.findAllByTestId('cloudwatch-dimensions-filter-item');
       expect(filterItems.length).toBe(2);
 
       expect(within(filterItems[0]).getByText('InstanceId')).toBeInTheDocument();
@@ -77,7 +77,7 @@ describe('Dimensions', () => {
     it('it should add the new item but not call onChange', async () => {
       props.query.dimensions = {};
       const onChange = jest.fn();
-      render(<Dimensions {...props} metricStat={props.query} onChange={onChange} dimensionKeys={[]} />);
+      render(<Dimensions {...props} metricStat={props.query} onChange={onChange} />);
 
       await userEvent.click(screen.getByLabelText('Add'));
       expect(screen.getByTestId('cloudwatch-dimensions-filter-item')).toBeInTheDocument();
@@ -89,9 +89,7 @@ describe('Dimensions', () => {
     it('it should add the new item but not call onChange', async () => {
       props.query.dimensions = {};
       const onChange = jest.fn();
-      const { container } = render(
-        <Dimensions {...props} metricStat={props.query} onChange={onChange} dimensionKeys={[]} />
-      );
+      const { container } = render(<Dimensions {...props} metricStat={props.query} onChange={onChange} />);
 
       await userEvent.click(screen.getByLabelText('Add'));
       const filterItemElement = screen.getByTestId('cloudwatch-dimensions-filter-item');
@@ -109,9 +107,7 @@ describe('Dimensions', () => {
     it('it should add the new item and trigger onChange', async () => {
       props.query.dimensions = {};
       const onChange = jest.fn();
-      const { container } = render(
-        <Dimensions {...props} metricStat={props.query} onChange={onChange} dimensionKeys={[]} />
-      );
+      const { container } = render(<Dimensions {...props} metricStat={props.query} onChange={onChange} />);
 
       const label = await screen.findByLabelText('Add');
       await userEvent.click(label);
@@ -128,11 +124,8 @@ describe('Dimensions', () => {
       expect(valueElement).toBeInTheDocument();
       await userEvent.type(valueElement!, 'my-value');
       fireEvent.keyDown(valueElement!, { keyCode: 13 });
-      expect(onChange).not.toHaveBeenCalledWith({
-        ...props.query,
-        dimensions: {
-          'my-key': 'my-value',
-        },
+      expect(onChange).toHaveBeenCalledWith({
+        'my-key': 'my-value',
       });
     });
   });
diff --git a/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/Dimensions.tsx b/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/Dimensions.tsx
index 9ca9b1cbc27..3909df54d84 100644
--- a/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/Dimensions.tsx
+++ b/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/Dimensions.tsx
@@ -1,7 +1,6 @@
 import { isEqual } from 'lodash';
 import React, { useMemo, useState } from 'react';
 
-import { SelectableValue } from '@grafana/data';
 import { EditorList } from '@grafana/experimental';
 
 import { CloudWatchDatasource } from '../../../datasource';
@@ -13,7 +12,6 @@ export interface Props {
   metricStat: MetricStat;
   onChange: (dimensions: DimensionsType) => void;
   datasource: CloudWatchDatasource;
-  dimensionKeys: Array<SelectableValue<string>>;
   disableExpressions: boolean;
 }
 
@@ -62,7 +60,7 @@ const filterConditionsToDimensions = (filters: DimensionFilterCondition[]) => {
   }, {});
 };
 
-export const Dimensions = ({ metricStat, datasource, dimensionKeys, disableExpressions, onChange }: Props) => {
+export const Dimensions = ({ metricStat, datasource, disableExpressions, onChange }: Props) => {
   const dimensionFilters = useMemo(() => dimensionsToFilterConditions(metricStat.dimensions), [metricStat.dimensions]);
   const [items, setItems] = useState<DimensionFilterCondition[]>(dimensionFilters);
   const onDimensionsChange = (newItems: Array<Partial<DimensionFilterCondition>>) => {
@@ -80,17 +78,12 @@ export const Dimensions = ({ metricStat, datasource, dimensionKeys, disableExpre
     <EditorList
       items={items}
       onChange={onDimensionsChange}
-      renderItem={makeRenderFilter(datasource, metricStat, dimensionKeys, disableExpressions)}
+      renderItem={makeRenderFilter(datasource, metricStat, disableExpressions)}
     />
   );
 };
 
-function makeRenderFilter(
-  datasource: CloudWatchDatasource,
-  metricStat: MetricStat,
-  dimensionKeys: Array<SelectableValue<string>>,
-  disableExpressions: boolean
-) {
+function makeRenderFilter(datasource: CloudWatchDatasource, metricStat: MetricStat, disableExpressions: boolean) {
   function renderFilter(
     item: DimensionFilterCondition,
     onChange: (item: DimensionFilterCondition) => void,
@@ -103,7 +96,6 @@ function makeRenderFilter(
         datasource={datasource}
         metricStat={metricStat}
         disableExpressions={disableExpressions}
-        dimensionKeys={dimensionKeys}
         onDelete={onDelete}
       />
     );
diff --git a/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/FilterItem.test.tsx b/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/FilterItem.test.tsx
new file mode 100644
index 00000000000..64c658249c2
--- /dev/null
+++ b/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/FilterItem.test.tsx
@@ -0,0 +1,53 @@
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import React from 'react';
+
+import { setupMockedDataSource } from '../../../__mocks__/CloudWatchDataSource';
+import { CloudWatchMetricsQuery } from '../../../types';
+
+import { FilterItem } from './FilterItem';
+
+const ds = setupMockedDataSource({
+  variables: [],
+});
+
+const q: CloudWatchMetricsQuery = {
+  id: '',
+  region: 'us-east-2',
+  namespace: '',
+  period: '',
+  alias: '',
+  metricName: '',
+  dimensions: { foo: 'bar', abc: 'xyz' },
+  matchExact: true,
+  statistic: '',
+  expression: '',
+  refId: '',
+};
+
+describe('Dimensions', () => {
+  it('should call getDimensionKeys without the current key', async () => {
+    const getDimensionKeys = jest.fn().mockResolvedValue([]);
+    ds.datasource.resources.getDimensionKeys = getDimensionKeys;
+    const currFilter = { key: 'foo', value: 'bar' };
+
+    render(
+      <FilterItem
+        metricStat={q}
+        datasource={ds.datasource}
+        filter={currFilter}
+        disableExpressions={true}
+        onChange={jest.fn()}
+        onDelete={jest.fn()}
+      />
+    );
+    await userEvent.click(screen.getByLabelText('Dimensions filter key'));
+    expect(getDimensionKeys).toHaveBeenCalledWith({
+      namespace: q.namespace,
+      region: q.region,
+      metricName: q.metricName,
+      accountId: q.accountId,
+      dimensionFilters: { abc: ['xyz'] },
+    });
+  });
+});
diff --git a/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/FilterItem.tsx b/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/FilterItem.tsx
index 0d89a68fa9f..7c5e65064c3 100644
--- a/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/FilterItem.tsx
+++ b/public/app/plugins/datasource/cloudwatch/components/shared/Dimensions/FilterItem.tsx
@@ -7,6 +7,7 @@ import { AccessoryButton, InputGroup } from '@grafana/experimental';
 import { Select, useStyles2 } from '@grafana/ui';
 
 import { CloudWatchDatasource } from '../../../datasource';
+import { useDimensionKeys } from '../../../hooks';
 import { Dimensions, MetricStat } from '../../../types';
 import { appendTemplateVariables } from '../../../utils/utils';
 
@@ -16,7 +17,6 @@ export interface Props {
   metricStat: MetricStat;
   datasource: CloudWatchDatasource;
   filter: DimensionFilterCondition;
-  dimensionKeys: Array<SelectableValue<string>>;
   disableExpressions: boolean;
   onChange: (value: DimensionFilterCondition) => void;
   onDelete: () => void;
@@ -32,19 +32,16 @@ const excludeCurrentKey = (dimensions: Dimensions, currentKey: string | undefine
     return acc;
   }, {});
 
-export const FilterItem = ({
-  filter,
-  metricStat: { region, namespace, metricName, dimensions, accountId },
-  datasource,
-  dimensionKeys,
-  disableExpressions,
-  onChange,
-  onDelete,
-}: Props) => {
+export const FilterItem = ({ filter, metricStat, datasource, disableExpressions, onChange, onDelete }: Props) => {
+  const { region, namespace, metricName, dimensions, accountId } = metricStat;
   const dimensionsExcludingCurrentKey = useMemo(
     () => excludeCurrentKey(dimensions ?? {}, filter.key),
     [dimensions, filter]
   );
+  const dimensionKeys = useDimensionKeys(datasource, {
+    ...metricStat,
+    dimensionFilters: dimensionsExcludingCurrentKey,
+  });
 
   const loadDimensionValues = async () => {
     if (!filter.key) {
diff --git a/public/app/plugins/datasource/cloudwatch/components/shared/MetricStatEditor/MetricStatEditor.tsx b/public/app/plugins/datasource/cloudwatch/components/shared/MetricStatEditor/MetricStatEditor.tsx
index bb57b58a872..1bd3035726a 100644
--- a/public/app/plugins/datasource/cloudwatch/components/shared/MetricStatEditor/MetricStatEditor.tsx
+++ b/public/app/plugins/datasource/cloudwatch/components/shared/MetricStatEditor/MetricStatEditor.tsx
@@ -6,7 +6,7 @@ import { config } from '@grafana/runtime';
 import { Select } from '@grafana/ui';
 
 import { CloudWatchDatasource } from '../../../datasource';
-import { useAccountOptions, useDimensionKeys, useMetrics, useNamespaces } from '../../../hooks';
+import { useAccountOptions, useMetrics, useNamespaces } from '../../../hooks';
 import { standardStatistics } from '../../../standardStatistics';
 import { MetricStat } from '../../../types';
 import { appendTemplateVariables, toOption } from '../../../utils/utils';
@@ -35,7 +35,6 @@ export const MetricStatEditor = ({
 }: React.PropsWithChildren<Props>) => {
   const namespaces = useNamespaces(datasource);
   const metrics = useMetrics(datasource, metricStat);
-  const dimensionKeys = useDimensionKeys(datasource, { ...metricStat, dimensionFilters: metricStat.dimensions });
   const accountState = useAccountOptions(datasource.resources, metricStat.region);
 
   useEffect(() => {
@@ -139,7 +138,6 @@ export const MetricStatEditor = ({
           <Dimensions
             metricStat={metricStat}
             onChange={(dimensions) => onChange({ ...metricStat, dimensions })}
-            dimensionKeys={dimensionKeys}
             disableExpressions={disableExpressions}
             datasource={datasource}
           />