diff --git a/packages/compass-schema-validation/src/components/validation-editor.spec.tsx b/packages/compass-schema-validation/src/components/validation-editor.spec.tsx
index aee40f00dbb..43945859c61 100644
--- a/packages/compass-schema-validation/src/components/validation-editor.spec.tsx
+++ b/packages/compass-schema-validation/src/components/validation-editor.spec.tsx
@@ -36,6 +36,7 @@ async function renderValidationEditor(
         validation={validation}
         generateValidationRules={() => {}}
         isRulesGenerationInProgress={false}
+        isSavingInProgress={false}
         isEditable
         isEditingEnabled
         {...props}
@@ -44,6 +45,8 @@ async function renderValidationEditor(
   );
 }
 
+const updateValidationTestId = 'update-validation-button';
+
 describe('ValidationEditor [Component]', function () {
   context(
     'when it is an editable mode but editing is not yet enabled',
@@ -173,10 +176,73 @@ describe('ValidationEditor [Component]', function () {
       });
     });
 
-    it('allows to generate rules', function () {
+    it('disables the ability to generate rules', function () {
       const generateBtn = screen.getByTestId('generate-rules-button');
       expect(generateBtn).to.be.visible;
       expect(generateBtn).to.have.attribute('aria-disabled', 'true');
     });
   });
+
+  context('when the validator is not changed', function () {
+    beforeEach(async function () {
+      await renderValidationEditor({
+        validation: {
+          validator: '{}',
+          validationAction: 'error',
+          validationLevel: 'moderate',
+          isChanged: false,
+          syntaxError: null,
+          error: null,
+        },
+      });
+    });
+
+    it('does not allow applying the rules', function () {
+      const applyBtn = screen.queryByTestId(updateValidationTestId);
+      expect(applyBtn).to.not.exist;
+    });
+  });
+
+  context('when the validator is changed', function () {
+    beforeEach(async function () {
+      await renderValidationEditor({
+        validation: {
+          validator: '{}',
+          validationAction: 'error',
+          validationLevel: 'moderate',
+          isChanged: true,
+          syntaxError: null,
+          error: null,
+        },
+      });
+    });
+
+    it('allows to apply changes', function () {
+      const applyBtn = screen.getByTestId(updateValidationTestId);
+      expect(applyBtn).to.be.visible;
+      expect(applyBtn).to.have.attribute('aria-disabled', 'false');
+    });
+  });
+
+  context('when the validation saving is in progress', function () {
+    beforeEach(async function () {
+      await renderValidationEditor({
+        validation: {
+          validator: '{}',
+          validationAction: 'error',
+          validationLevel: 'moderate',
+          isChanged: true,
+          syntaxError: null,
+          error: null,
+        },
+        isSavingInProgress: true,
+      });
+    });
+
+    it('disables the apply button and shows a spin loader', function () {
+      const applyBtn = screen.queryByTestId(updateValidationTestId);
+      expect(applyBtn).to.be.visible;
+      expect(applyBtn).to.have.attribute('aria-disabled', 'true');
+    });
+  });
 });
diff --git a/packages/compass-schema-validation/src/components/validation-editor.tsx b/packages/compass-schema-validation/src/components/validation-editor.tsx
index 2c41c9239c8..613e9ca472a 100644
--- a/packages/compass-schema-validation/src/components/validation-editor.tsx
+++ b/packages/compass-schema-validation/src/components/validation-editor.tsx
@@ -149,6 +149,7 @@ type ValidationEditorProps = {
   isEditable: boolean;
   isEditingEnabled: boolean;
   isRulesGenerationInProgress: boolean;
+  isSavingInProgress: boolean;
 };
 
 /**
@@ -171,6 +172,7 @@ export const ValidationEditor: React.FunctionComponent<
   isEditable,
   isEditingEnabled,
   isRulesGenerationInProgress,
+  isSavingInProgress,
 }) => {
   const enableExportSchema = usePreference('enableExportSchema');
   const track = useTelemetry();
@@ -343,6 +345,8 @@ export const ValidationEditor: React.FunctionComponent<
                   onClick={() => {
                     void onClickApplyValidation();
                   }}
+                  isLoading={isSavingInProgress}
+                  loadingIndicator={<SpinLoader title="Updating validation…" />}
                   disabled={!!syntaxError}
                 >
                   Apply
@@ -372,6 +376,7 @@ const mapStateToProps = (state: RootState) => ({
   validation: state.validation,
   namespace: state.namespace.ns,
   isRulesGenerationInProgress: state.rulesGeneration.isInProgress,
+  isSavingInProgress: state.validation.isSaving,
 });
 
 /**
diff --git a/packages/compass-schema-validation/src/modules/validation.spec.ts b/packages/compass-schema-validation/src/modules/validation.spec.ts
index cce90e53ddf..876076209d9 100644
--- a/packages/compass-schema-validation/src/modules/validation.spec.ts
+++ b/packages/compass-schema-validation/src/modules/validation.spec.ts
@@ -32,6 +32,7 @@ describe('validation module', function () {
             validationAction: 'error',
             validationLevel: 'strict',
             isChanged: false,
+            isSaving: false,
             syntaxError: null,
             error: null,
           });
@@ -131,6 +132,7 @@ describe('validation module', function () {
 
         expect(validation).to.deep.equal({
           isChanged: false,
+          isSaving: false,
           prevValidation: {
             validator,
             validationAction: 'warn',
@@ -159,6 +161,7 @@ describe('validation module', function () {
           validationAction: 'error',
           validationLevel: 'strict',
           isChanged: false,
+          isSaving: false,
           syntaxError: null,
           error: {
             message: 'Validation save failed!',
diff --git a/packages/compass-schema-validation/src/modules/validation.ts b/packages/compass-schema-validation/src/modules/validation.ts
index 01211209f03..ac00b17670b 100644
--- a/packages/compass-schema-validation/src/modules/validation.ts
+++ b/packages/compass-schema-validation/src/modules/validation.ts
@@ -18,6 +18,8 @@ export type ValidationLevel = 'off' | 'moderate' | 'strict';
 export const enum ValidationActions {
   ValidatorChanged = 'compass-schema-validation/validation/ValidatorChanged',
   ValidationCanceled = 'compass-schema-validation/validation/ValidationCanceled',
+  ValidationSaveStarted = 'compass-schema-validation/validation/ValidationSaveStarted',
+  ValidationSaveEnded = 'compass-schema-validation/validation/ValidationSaveEnded',
   ValidationSaveFailed = 'compass-schema-validation/validation/ValidationSaveFailed',
   ValidationFetched = 'compass-schema-validation/validation/ValidationFetched',
   EmptyValidationFetched = 'compass-schema-validation/validation/EmptyValidationFetched',
@@ -35,6 +37,14 @@ export interface ValidationCanceledAction {
   type: ValidationActions.ValidationCanceled;
 }
 
+interface ValidationSaveStartedAction {
+  type: ValidationActions.ValidationSaveStarted;
+}
+
+interface ValidationSaveEndedAction {
+  type: ValidationActions.ValidationSaveEnded;
+}
+
 interface ValidationSaveFailedAction {
   type: ValidationActions.ValidationSaveFailed;
   error: { message: string };
@@ -86,6 +96,7 @@ export interface Validation {
 
 export interface ValidationState extends Validation {
   isChanged: boolean;
+  isSaving: boolean;
   syntaxError: null | { message: string };
   error: null | { message: string };
   prevValidation?: Validation;
@@ -99,6 +110,7 @@ export const INITIAL_STATE: ValidationState = {
   validationAction: 'error',
   validationLevel: 'strict',
   isChanged: false,
+  isSaving: false,
   syntaxError: null,
   error: null,
 };
@@ -165,6 +177,31 @@ export default function reducer(
     };
   }
 
+  if (
+    isAction<ValidationSaveStartedAction>(
+      action,
+      ValidationActions.ValidationSaveStarted
+    )
+  ) {
+    return {
+      ...state,
+      error: null,
+      isSaving: true,
+    };
+  }
+
+  if (
+    isAction<ValidationSaveEndedAction>(
+      action,
+      ValidationActions.ValidationSaveEnded
+    )
+  ) {
+    return {
+      ...state,
+      isSaving: false,
+    };
+  }
+
   if (
     isAction<ValidationSaveFailedAction>(
       action,
@@ -369,6 +406,14 @@ export const emptyValidationFetched = ({
   validationTemplate,
 });
 
+export const validationSaveStarted = (): ValidationSaveStartedAction => ({
+  type: ValidationActions.ValidationSaveStarted,
+});
+
+export const validationSaveEnded = (): ValidationSaveEndedAction => ({
+  type: ValidationActions.ValidationSaveEnded,
+});
+
 export const validationCanceled = (): ValidationCanceledAction => ({
   type: ValidationActions.ValidationCanceled,
 });
@@ -446,6 +491,9 @@ export const saveValidation = (
       validation_level: validation.validationLevel,
     };
     track('Schema Validation Updated', trackEvent, connectionInfoRef.current);
+
+    dispatch(validationSaveStarted());
+
     try {
       await dataService.updateCollection(
         `${namespace.database}.${namespace.collection}`,
@@ -463,6 +511,8 @@ export const saveValidation = (
       dispatch(disableEditRules());
     } catch (error) {
       dispatch(validationSaveFailed(error as Error));
+    } finally {
+      dispatch(validationSaveEnded());
     }
   };
 };
diff --git a/packages/compass-schema-validation/src/stores/store.spec.ts b/packages/compass-schema-validation/src/stores/store.spec.ts
index cbda112d886..1357dfec014 100644
--- a/packages/compass-schema-validation/src/stores/store.spec.ts
+++ b/packages/compass-schema-validation/src/stores/store.spec.ts
@@ -217,6 +217,7 @@ describe('Schema Validation Store', function () {
             error: null,
             syntaxError: null,
             isChanged: false,
+            isSaving: false,
             prevValidation: {
               validator,
               validationAction: 'warn',
@@ -242,6 +243,7 @@ describe('Schema Validation Store', function () {
             error: { message: 'Validation fetch failed!' },
             syntaxError: null,
             isChanged: true,
+            isSaving: false,
             prevValidation: {
               validator: '{}',
               validationAction: 'error',