diff --git a/.changeset/itchy-chicken-admire.md b/.changeset/itchy-chicken-admire.md
new file mode 100644
index 00000000..ac22881d
--- /dev/null
+++ b/.changeset/itchy-chicken-admire.md
@@ -0,0 +1,5 @@
+---
+'jest-extended': patch
+---
+
+fix compatibility with vitest 0.31.0
diff --git a/types/index.d.ts b/types/index.d.ts
index 16626d35..ccbe5d71 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -1,6 +1,6 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
 
-interface CustomMatchers<R> extends Record<string, any> {
+export interface CustomMatchers<R> extends Record<string, any> {
   /**
    * Note: Currently unimplemented
    * Passing assertion
@@ -887,7 +887,10 @@ declare namespace Vi {
 }
 
 // Changed since vitest 0.31.0. Usefull for every vitest version after 0.31.0
+import 'vitest';
 declare module 'vitest' {
+  // eslint-disable-next-line @typescript-eslint/no-empty-interface
+  interface Assertion<T = any> extends CustomMatchers<T> {}
   // eslint-disable-next-line @typescript-eslint/no-empty-interface
   interface AsymmetricMatchersContaining extends CustomMatchers<any> {}
 }