diff --git a/src/components/ProblemList.tsx b/src/components/ProblemList.tsx
index 78fed50..378b788 100644
--- a/src/components/ProblemList.tsx
+++ b/src/components/ProblemList.tsx
@@ -5,7 +5,7 @@ import TableCell from "@mui/material/TableCell";
 import TableContainer from "@mui/material/TableContainer";
 import TableRow from "@mui/material/TableRow";
 import React from "react";
-import { Problem } from "../api/library_checker";
+import { Problem } from "../proto/library_checker";
 import { Link } from "react-router-dom";
 import { lightGreen, cyan } from "@mui/material/colors";
 import KatexTypography from "./katex/KatexTypography";
diff --git a/src/components/SubmissionTable.tsx b/src/components/SubmissionTable.tsx
index 4504a77..31c69fd 100644
--- a/src/components/SubmissionTable.tsx
+++ b/src/components/SubmissionTable.tsx
@@ -11,10 +11,10 @@ import "katex/dist/katex.min.css";
 import React from "react";
 import { Link } from "react-router-dom";
 import { useLangList } from "../api/client_wrapper";
-import { SubmissionOverview } from "../api/library_checker";
+import { SubmissionOverview } from "../proto/library_checker";
 import KatexTypography from "./katex/KatexTypography";
 import { styled } from "@mui/system";
-import { Timestamp } from "../api/google/protobuf/timestamp";
+import { Timestamp } from "../proto/google/protobuf/timestamp";
 
 interface Props {
   overviews: SubmissionOverview[];
diff --git a/src/pages/ProblemInfo.tsx b/src/pages/ProblemInfo.tsx
index 29023a5..cfdc128 100644
--- a/src/pages/ProblemInfo.tsx
+++ b/src/pages/ProblemInfo.tsx
@@ -14,7 +14,7 @@ import library_checker_client, {
   useLangList,
   useProblemInfo,
 } from "../api/client_wrapper";
-import { ProblemInfoResponse } from "../api/library_checker";
+import { ProblemInfoResponse } from "../proto/library_checker";
 import SourceEditor from "../components/SourceEditor";
 import { AuthContext } from "../contexts/AuthContext";
 import { GitHub, FlashOn, Person } from "@mui/icons-material";
diff --git a/src/pages/Problems.tsx b/src/pages/Problems.tsx
index 40fea71..e59e9f0 100644
--- a/src/pages/Problems.tsx
+++ b/src/pages/Problems.tsx
@@ -7,7 +7,7 @@ import {
   useProblemList,
   useUserInfo,
 } from "../api/client_wrapper";
-import { SolvedStatus } from "../api/library_checker";
+import { SolvedStatus } from "../proto/library_checker";
 import ProblemList from "../components/ProblemList";
 import { AuthContext } from "../contexts/AuthContext";
 import {
diff --git a/src/pages/SubmissionInfo.tsx b/src/pages/SubmissionInfo.tsx
index dc91db6..d9e7b69 100644
--- a/src/pages/SubmissionInfo.tsx
+++ b/src/pages/SubmissionInfo.tsx
@@ -26,7 +26,7 @@ import CircularProgress from "@mui/material/CircularProgress";
 import Link from "@mui/material/Link";
 import { LibraryBooks } from "@mui/icons-material";
 import { Collapse, Container, Divider, IconButton } from "@mui/material";
-import { SubmissionCaseResult } from "../api/library_checker";
+import { SubmissionCaseResult } from "../proto/library_checker";
 import KeyboardArrowDownIcon from "@mui/icons-material/KeyboardArrowDown";
 import KeyboardArrowUpIcon from "@mui/icons-material/KeyboardArrowUp";
 
diff --git a/src/utils/ProblemCategorizer.ts b/src/utils/ProblemCategorizer.ts
index ba4e727..58e1b64 100644
--- a/src/utils/ProblemCategorizer.ts
+++ b/src/utils/ProblemCategorizer.ts
@@ -1,4 +1,4 @@
-import { Problem, ProblemCategory } from "../api/library_checker";
+import { Problem, ProblemCategory } from "../proto/library_checker";
 
 export type CategorisedProblems = {
   name: string;