diff --git a/sources/src/call-validators/analyzers.ts b/sources/src/call-validators/analyzers.ts
index 938a255..6db81d4 100644
--- a/sources/src/call-validators/analyzers.ts
+++ b/sources/src/call-validators/analyzers.ts
@@ -1,4 +1,4 @@
-import type {getCallStack} from '../utils';
+import type {getCallStack} from '../utils.js';
 type Analyzer = (line: string) => boolean;
 
 class MemoizedCallAnalyzer {
diff --git a/sources/src/call-validators/suites.ts b/sources/src/call-validators/suites.ts
index 928d017..07697d3 100644
--- a/sources/src/call-validators/suites.ts
+++ b/sources/src/call-validators/suites.ts
@@ -1,5 +1,5 @@
-import {type getCallStack} from '../utils';
-import {adShieldCallAnalyzer} from './analyzers';
+import {type getCallStack} from '../utils.js';
+import {adShieldCallAnalyzer} from './analyzers.js';
 
 export type ValidatorFunction = (callStack: ReturnType<typeof getCallStack>) => boolean;
 
diff --git a/sources/src/loaders/basedrop.ts b/sources/src/loaders/basedrop.ts
index c87e77e..686dca6 100644
--- a/sources/src/loaders/basedrop.ts
+++ b/sources/src/loaders/basedrop.ts
@@ -1,4 +1,4 @@
-import {createDebug, documentReady} from '../utils';
+import {createDebug, documentReady} from '../utils.js';
 
 const debug = createDebug('[microShield:basedrop]');
 
diff --git a/sources/src/loaders/basera1n.ts b/sources/src/loaders/basera1n.ts
index 0845486..4eef3be 100644
--- a/sources/src/loaders/basera1n.ts
+++ b/sources/src/loaders/basera1n.ts
@@ -1,4 +1,4 @@
-import * as asKit from '../adshield-defuser-libs/basera1n';
+import * as asKit from '../adshield-defuser-libs/basera1n.js';
 import {createDebug, documentReady} from '../utils.js';
 
 const debug = createDebug('[microShield:basera1n]');
diff --git a/sources/src/loaders/baseshower.ts b/sources/src/loaders/baseshower.ts
index 36bf19b..e4da193 100644
--- a/sources/src/loaders/baseshower.ts
+++ b/sources/src/loaders/baseshower.ts
@@ -1,4 +1,4 @@
-import * as asKit from '../adshield-defuser-libs/baseshower';
+import * as asKit from '../adshield-defuser-libs/baseshower.js';
 import {createDebug, documentReady} from '../utils.js';
 
 const debug = createDebug('[microShield:baseshower]');
diff --git a/sources/src/utils.ts b/sources/src/utils.ts
index a447daa..104e60b 100644
--- a/sources/src/utils.ts
+++ b/sources/src/utils.ts
@@ -1,5 +1,5 @@
-import {isNotResourceInfectedByAdShield, knownAdShieldOrigins} from './call-validators/analyzers';
-import {adShieldOriginCheck, adShieldStrictCheck} from './call-validators/suites';
+import {isNotResourceInfectedByAdShield, knownAdShieldOrigins} from './call-validators/analyzers.js';
+import {adShieldOriginCheck, adShieldStrictCheck} from './call-validators/suites.js';
 
 // eslint-disable-next-line @typescript-eslint/naming-convention
 type unsafeWindow = typeof window;