diff --git a/packages/solid-query-persist-client/src/__tests__/PersistQueryClientProvider.test.tsx b/packages/solid-query-persist-client/src/__tests__/PersistQueryClientProvider.test.tsx
index 0274e4db3c..164a387d40 100644
--- a/packages/solid-query-persist-client/src/__tests__/PersistQueryClientProvider.test.tsx
+++ b/packages/solid-query-persist-client/src/__tests__/PersistQueryClientProvider.test.tsx
@@ -15,7 +15,7 @@ const createMockPersister = (): Persister => {
   let storedState: PersistedClient | undefined
 
   return {
-    async persistClient(persistClient: PersistedClient) {
+    persistClient(persistClient: PersistedClient) {
       storedState = persistClient
     },
     async restoreClient() {
diff --git a/packages/solid-query/src/__tests__/useMutation.test.tsx b/packages/solid-query/src/__tests__/useMutation.test.tsx
index 3a80e4b45f..4c23bf383e 100644
--- a/packages/solid-query/src/__tests__/useMutation.test.tsx
+++ b/packages/solid-query/src/__tests__/useMutation.test.tsx
@@ -316,11 +316,11 @@ describe('useMutation', () => {
 
     function Page() {
       const mutation = useMutation(() => ({
-        mutationFn: async (text: string) => text,
-        onSuccess: async () => {
+        mutationFn: (text: string) => Promise.resolve(text),
+        onSuccess: () => {
           callbacks.push('useMutation.onSuccess')
         },
-        onSettled: async () => {
+        onSettled: () => {
           callbacks.push('useMutation.onSettled')
         },
       }))
@@ -330,10 +330,10 @@ describe('useMutation', () => {
         setActTimeout(async () => {
           try {
             const result = await mutateAsync('todo', {
-              onSuccess: async () => {
+              onSuccess: () => {
                 callbacks.push('mutateAsync.onSuccess')
               },
-              onSettled: async () => {
+              onSettled: () => {
                 callbacks.push('mutateAsync.onSettled')
               },
             })
@@ -369,10 +369,10 @@ describe('useMutation', () => {
       const mutation = useMutation(() => ({
         mutationFn: async (_text: string) => Promise.reject(new Error('oops')),
 
-        onError: async () => {
+        onError: () => {
           callbacks.push('useMutation.onError')
         },
-        onSettled: async () => {
+        onSettled: () => {
           callbacks.push('useMutation.onSettled')
         },
       }))
@@ -382,10 +382,10 @@ describe('useMutation', () => {
         setActTimeout(async () => {
           try {
             await mutateAsync('todo', {
-              onError: async () => {
+              onError: () => {
                 callbacks.push('mutateAsync.onError')
               },
-              onSettled: async () => {
+              onSettled: () => {
                 callbacks.push('mutateAsync.onSettled')
               },
             })
@@ -756,7 +756,7 @@ describe('useMutation', () => {
     })
   })
 
-  it('should not change state if unmounted', async () => {
+  it('should not change state if unmounted', () => {
     function Mutates() {
       const mutation = useMutation(() => ({ mutationFn: () => sleep(10) }))
       return <button onClick={() => mutation.mutate()}>mutate</button>
@@ -901,11 +901,11 @@ describe('useMutation', () => {
 
     function Page() {
       const mutationSucceed = useMutation(() => ({
-        mutationFn: async () => '',
+        mutationFn: () => Promise.resolve(''),
         meta: { metaSuccessMessage },
       }))
       const mutationError = useMutation(() => ({
-        mutationFn: async () => {
+        mutationFn: () => {
           throw new Error('')
         },
         meta: { metaErrorMessage },
diff --git a/packages/solid-query/src/__tests__/useQueries.test.tsx b/packages/solid-query/src/__tests__/useQueries.test.tsx
index 46ee666d42..fcdae15d84 100644
--- a/packages/solid-query/src/__tests__/useQueries.test.tsx
+++ b/packages/solid-query/src/__tests__/useQueries.test.tsx
@@ -69,7 +69,7 @@ describe('useQueries', () => {
     expect(results[2]).toMatchObject([{ data: 1 }, { data: 2 }])
   })
 
-  it('handles type parameter - tuple of tuples', async () => {
+  it('handles type parameter - tuple of tuples', () => {
     const key1 = queryKey()
     const key2 = queryKey()
     const key3 = queryKey()
@@ -174,7 +174,7 @@ describe('useQueries', () => {
     }
   })
 
-  it('handles type parameter - tuple of objects', async () => {
+  it('handles type parameter - tuple of objects', () => {
     const key1 = queryKey()
     const key2 = queryKey()
     const key3 = queryKey()
@@ -315,7 +315,7 @@ describe('useQueries', () => {
     }
   })
 
-  it('handles array literal without type parameter to infer result type', async () => {
+  it('handles array literal without type parameter to infer result type', () => {
     const key1 = queryKey()
     const key2 = queryKey()
     const key3 = queryKey()
@@ -544,7 +544,7 @@ describe('useQueries', () => {
     type QueryKeyA = ['queryA']
     const getQueryKeyA = (): QueryKeyA => ['queryA']
     type GetQueryFunctionA = () => QueryFunction<number, QueryKeyA>
-    const getQueryFunctionA: GetQueryFunctionA = () => async () => {
+    const getQueryFunctionA: GetQueryFunctionA = () => () => {
       return 1
     }
     type SelectorA = (data: number) => [number, string]
@@ -553,7 +553,7 @@ describe('useQueries', () => {
     type QueryKeyB = ['queryB', string]
     const getQueryKeyB = (id: string): QueryKeyB => ['queryB', id]
     type GetQueryFunctionB = () => QueryFunction<string, QueryKeyB>
-    const getQueryFunctionB: GetQueryFunctionB = () => async () => {
+    const getQueryFunctionB: GetQueryFunctionB = () => () => {
       return '1'
     }
     type SelectorB = (data: string) => [string, number]
diff --git a/packages/solid-query/src/__tests__/useQuery.test.tsx b/packages/solid-query/src/__tests__/useQuery.test.tsx
index 70914603b7..7a1547bf45 100644
--- a/packages/solid-query/src/__tests__/useQuery.test.tsx
+++ b/packages/solid-query/src/__tests__/useQuery.test.tsx
@@ -72,7 +72,7 @@ describe('useQuery', () => {
       // it should provide the result type in the configuration
       useQuery(() => ({
         queryKey: [key],
-        queryFn: async () => true,
+        queryFn: () => true,
       }))
 
       // it should be possible to specify a union type as result type
@@ -117,7 +117,7 @@ describe('useQuery', () => {
       type MyData = number
       type MyQueryKey = readonly ['my-data', number]
 
-      const getMyDataArrayKey: QueryFunction<MyData, MyQueryKey> = async ({
+      const getMyDataArrayKey: QueryFunction<MyData, MyQueryKey> = ({
         queryKey: [, n],
       }) => {
         return n + 42
@@ -128,9 +128,7 @@ describe('useQuery', () => {
         queryFn: getMyDataArrayKey,
       }))
 
-      const getMyDataStringKey: QueryFunction<MyData, ['1']> = async (
-        context,
-      ) => {
+      const getMyDataStringKey: QueryFunction<MyData, ['1']> = (context) => {
         expectTypeOf(context.queryKey).toEqualTypeOf<['1']>()
         return Number(context.queryKey[0]) + 42
       }
@@ -170,7 +168,7 @@ describe('useQuery', () => {
           queryFn: () => fetcher(qk[1], 'token'),
           ...options,
         }))
-      const test = useWrappedQuery([''], async () => '1')
+      const test = useWrappedQuery([''], () => Promise.resolve('1'))
       expectTypeOf(test.data).toEqualTypeOf<string | undefined>()
 
       // handles wrapped queries with custom fetcher passed directly to useQuery
@@ -188,7 +186,9 @@ describe('useQuery', () => {
           'safely'
         >,
       ) => useQuery(() => ({ queryKey: qk, queryFn: fetcher, ...options }))
-      const testFuncStyle = useWrappedFuncStyleQuery([''], async () => true)
+      const testFuncStyle = useWrappedFuncStyleQuery([''], () =>
+        Promise.resolve(true),
+      )
       expectTypeOf(testFuncStyle.data).toEqualTypeOf<boolean | undefined>()
     }
   })
@@ -1854,7 +1854,7 @@ describe('useQuery', () => {
   })
 
   // See https://github.com/tannerlinsley/react-query/issues/137
-  it('should not override initial data in dependent queries', async () => {
+  it('should not override initial data in dependent queries', () => {
     const key1 = queryKey()
     const key2 = queryKey()
 
@@ -1895,7 +1895,7 @@ describe('useQuery', () => {
     rendered.getByText('Second Status: success')
   })
 
-  it('should update query options', async () => {
+  it('should update query options', () => {
     const key = queryKey()
 
     const queryFn = async () => {
@@ -2018,7 +2018,7 @@ describe('useQuery', () => {
   })
 
   // See https://github.com/tannerlinsley/react-query/issues/144
-  it('should be in "pending" state by default', async () => {
+  it('should be in "pending" state by default', () => {
     const key = queryKey()
 
     function Page() {
@@ -3403,7 +3403,7 @@ describe('useQuery', () => {
 
       const query = useQuery<unknown, Error>(() => ({
         queryKey: key,
-        queryFn: async () => {
+        queryFn: () => {
           if (counter < 2) {
             counter++
             throw new Error('error')
@@ -3753,7 +3753,7 @@ describe('useQuery', () => {
     expect(results[2]).toMatchObject({ data: 'fetched data', isStale: false })
   })
 
-  it('should support enabled:false in query object syntax', async () => {
+  it('should support enabled:false in query object syntax', () => {
     const key = queryKey()
     const queryFn = vi.fn<(...args: Array<unknown>) => string>()
     queryFn.mockImplementation(() => 'data')
@@ -5916,7 +5916,7 @@ describe('useQuery', () => {
     const states: Array<UseQueryResult<unknown>> = []
     const error = new Error('oops')
 
-    const queryFn = async (): Promise<unknown> => {
+    const queryFn = (): Promise<unknown> => {
       throw error
     }
 
@@ -5996,7 +5996,7 @@ describe('useQuery', () => {
     function Page() {
       const state = useQuery(() => ({
         queryKey: key,
-        queryFn: async (): Promise<unknown> => {
+        queryFn: (): Promise<unknown> => {
           throw error
         },
         retry: false,