diff --git a/src/bigquery/bigquery.contribution.ts b/src/bigquery/bigquery.contribution.ts
index 0a18983..122aa2c 100644
--- a/src/bigquery/bigquery.contribution.ts
+++ b/src/bigquery/bigquery.contribution.ts
@@ -1,4 +1,4 @@
-import type { LanguageDefinition } from '../types';
+import type { LanguageDefinition } from '../types.js';
 
 export const bigqueryLanguageDefinition: LanguageDefinition = {
   aliases: ['BigQuery', 'bigquery'],
diff --git a/src/clickhouse/clickhouse.contribution.ts b/src/clickhouse/clickhouse.contribution.ts
index aefb5c2..371ac01 100644
--- a/src/clickhouse/clickhouse.contribution.ts
+++ b/src/clickhouse/clickhouse.contribution.ts
@@ -1,4 +1,4 @@
-import type { LanguageDefinition } from '../types';
+import type { LanguageDefinition } from '../types.js';
 
 export const clickhouseLanguageDefinition: LanguageDefinition = {
   aliases: ['Clickhouse', 'ClickHouse'],
diff --git a/src/pgsql/pgsql.contribution.ts b/src/pgsql/pgsql.contribution.ts
index 8644bc5..116d0db 100644
--- a/src/pgsql/pgsql.contribution.ts
+++ b/src/pgsql/pgsql.contribution.ts
@@ -1,4 +1,4 @@
-import type { LanguageDefinition } from '../types';
+import type { LanguageDefinition } from '../types.js';
 
 export const pgsqlLanguageDefinition: LanguageDefinition = {
   aliases: ['PostgreSQL', 'postgres', 'pg', 'postgre'],
diff --git a/src/presto/presto.contribution.ts b/src/presto/presto.contribution.ts
index f836009..ed5cc16 100644
--- a/src/presto/presto.contribution.ts
+++ b/src/presto/presto.contribution.ts
@@ -1,4 +1,4 @@
-import type { LanguageDefinition } from '../types';
+import type { LanguageDefinition } from '../types.js';
 
 export const prestoLanguageDefinition: LanguageDefinition = {
   aliases: ['Presto'],
diff --git a/src/snowflake/snowflake.contribution.ts b/src/snowflake/snowflake.contribution.ts
index 62f774d..8a7be4b 100644
--- a/src/snowflake/snowflake.contribution.ts
+++ b/src/snowflake/snowflake.contribution.ts
@@ -1,4 +1,4 @@
-import type { LanguageDefinition } from '../types';
+import type { LanguageDefinition } from '../types.js';
 
 export const snowflakeLanguageDefinition: LanguageDefinition = {
   aliases: ['Snowflake'],
diff --git a/src/timescale/timescale.contribution.ts b/src/timescale/timescale.contribution.ts
index 27a9c2e..b843599 100644
--- a/src/timescale/timescale.contribution.ts
+++ b/src/timescale/timescale.contribution.ts
@@ -1,4 +1,4 @@
-import type { LanguageDefinition } from '../types';
+import type { LanguageDefinition } from '../types.js';
 
 export const timescaleLanguageDefinition: LanguageDefinition = {
   aliases: ['Timescale'],
diff --git a/src/timescale/timescale.ts b/src/timescale/timescale.ts
index 4ec236d..8ad3c17 100644
--- a/src/timescale/timescale.ts
+++ b/src/timescale/timescale.ts
@@ -2,7 +2,7 @@
 
 import cloneDeep from 'lodash.clonedeep';
 
-import { conf as oldConf, language as oldLanguage } from '../pgsql/pgsql';
+import { conf as oldConf, language as oldLanguage } from '../pgsql/pgsql.js';
 
 const conf = cloneDeep(oldConf);
 const language = cloneDeep(oldLanguage);