diff --git a/README.md b/README.md
index e127943..0c3241d 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ go test -coverprofile cover.out -v ./...
 ...
 PASS
 coverage: 74.0% of statements
-ok      focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/cmd/joj3  2.290s  coverage: 74.0% of statements
+ok      github.com/joint-online-judge/JOJ3/cmd/joj3  2.290s  coverage: 74.0% of statements
 ```
 
 ### For developers
diff --git a/cmd/healthcheck/main.go b/cmd/healthcheck/main.go
index 2169f98..5951848 100644
--- a/cmd/healthcheck/main.go
+++ b/cmd/healthcheck/main.go
@@ -6,7 +6,7 @@ import (
 	"log/slog"
 	"os"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/pkg/healthcheck"
+	"github.com/joint-online-judge/JOJ3/pkg/healthcheck"
 )
 
 // parseMultiValueFlag parses a multi-value command-line flag and appends its values to the provided slice.
diff --git a/cmd/joj3/conf.go b/cmd/joj3/conf.go
index 311327a..31dff4f 100644
--- a/cmd/joj3/conf.go
+++ b/cmd/joj3/conf.go
@@ -7,7 +7,7 @@ import (
 	"os"
 	"regexp"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 	"github.com/koding/multiconfig"
 )
 
diff --git a/cmd/joj3/main.go b/cmd/joj3/main.go
index 7381aaa..a83f1b7 100644
--- a/cmd/joj3/main.go
+++ b/cmd/joj3/main.go
@@ -6,9 +6,9 @@ import (
 	"log/slog"
 	"os"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/executors"
-	_ "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/parsers"
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+	"github.com/joint-online-judge/JOJ3/internal/executors"
+	_ "github.com/joint-online-judge/JOJ3/internal/parsers"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 
 	"github.com/go-git/go-git/v5"
 	"github.com/jinzhu/copier"
diff --git a/cmd/joj3/main_test.go b/cmd/joj3/main_test.go
index 382eeeb..e160176 100644
--- a/cmd/joj3/main_test.go
+++ b/cmd/joj3/main_test.go
@@ -9,7 +9,7 @@ import (
 	"strings"
 	"testing"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 func compareStageResults(t *testing.T, actual, expected []stage.StageResult, regex bool) {
diff --git a/cmd/sample/main.go b/cmd/sample/main.go
index 602e0d0..16d1202 100644
--- a/cmd/sample/main.go
+++ b/cmd/sample/main.go
@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"os"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/pkg/sample"
+	"github.com/joint-online-judge/JOJ3/pkg/sample"
 )
 
 func main() {
diff --git a/go.mod b/go.mod
index 5566ad6..1a2b8ee 100644
--- a/go.mod
+++ b/go.mod
@@ -1,4 +1,4 @@
-module focs.ji.sjtu.edu.cn/git/JOJ/JOJ3
+module github.com/joint-online-judge/JOJ3
 
 go 1.22.1
 
diff --git a/internal/executors/all.go b/internal/executors/all.go
index 7f7ab8a..6885d66 100644
--- a/internal/executors/all.go
+++ b/internal/executors/all.go
@@ -1,8 +1,8 @@
 package executors
 
 import (
-	_ "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/executors/dummy"
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/executors/sandbox"
+	_ "github.com/joint-online-judge/JOJ3/internal/executors/dummy"
+	"github.com/joint-online-judge/JOJ3/internal/executors/sandbox"
 )
 
 // this file does nothing but imports to ensure all the init() functions
diff --git a/internal/executors/dummy/executor.go b/internal/executors/dummy/executor.go
index 679c094..4eb6a14 100644
--- a/internal/executors/dummy/executor.go
+++ b/internal/executors/dummy/executor.go
@@ -1,8 +1,8 @@
 package dummy
 
 import (
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
 	"github.com/criyle/go-judge/envexec"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 type Dummy struct{}
diff --git a/internal/executors/dummy/meta.go b/internal/executors/dummy/meta.go
index 94e3211..b745e19 100644
--- a/internal/executors/dummy/meta.go
+++ b/internal/executors/dummy/meta.go
@@ -1,6 +1,6 @@
 package dummy
 
-import "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+import "github.com/joint-online-judge/JOJ3/internal/stage"
 
 var name = "dummy"
 
diff --git a/internal/executors/sandbox/convert.go b/internal/executors/sandbox/convert.go
index 830fd2a..eebdf21 100644
--- a/internal/executors/sandbox/convert.go
+++ b/internal/executors/sandbox/convert.go
@@ -6,8 +6,8 @@ import (
 	"path/filepath"
 	"strings"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
 	"github.com/criyle/go-judge/pb"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 // copied from https://github.com/criyle/go-judge/blob/master/cmd/go-judge-shell/grpc.go
diff --git a/internal/executors/sandbox/executor.go b/internal/executors/sandbox/executor.go
index 2c8adf0..5b18fbe 100644
--- a/internal/executors/sandbox/executor.go
+++ b/internal/executors/sandbox/executor.go
@@ -5,8 +5,8 @@ import (
 	"fmt"
 	"log/slog"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
 	"github.com/criyle/go-judge/pb"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 type Sandbox struct {
diff --git a/internal/executors/sandbox/meta.go b/internal/executors/sandbox/meta.go
index db0994c..d3a2ba8 100644
--- a/internal/executors/sandbox/meta.go
+++ b/internal/executors/sandbox/meta.go
@@ -1,7 +1,7 @@
 package sandbox
 
 import (
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 var name = "sandbox"
diff --git a/internal/parsers/all.go b/internal/parsers/all.go
index c3fa0ee..e8bb941 100644
--- a/internal/parsers/all.go
+++ b/internal/parsers/all.go
@@ -1,15 +1,15 @@
 package parsers
 
 import (
-	_ "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/parsers/clangtidy"
-	_ "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/parsers/cppcheck"
-	_ "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/parsers/cpplint"
-	_ "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/parsers/diff"
-	_ "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/parsers/dummy"
-	_ "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/parsers/healthcheck"
-	_ "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/parsers/keyword"
-	_ "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/parsers/resultstatus"
-	_ "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/parsers/sample"
+	_ "github.com/joint-online-judge/JOJ3/internal/parsers/clangtidy"
+	_ "github.com/joint-online-judge/JOJ3/internal/parsers/cppcheck"
+	_ "github.com/joint-online-judge/JOJ3/internal/parsers/cpplint"
+	_ "github.com/joint-online-judge/JOJ3/internal/parsers/diff"
+	_ "github.com/joint-online-judge/JOJ3/internal/parsers/dummy"
+	_ "github.com/joint-online-judge/JOJ3/internal/parsers/healthcheck"
+	_ "github.com/joint-online-judge/JOJ3/internal/parsers/keyword"
+	_ "github.com/joint-online-judge/JOJ3/internal/parsers/resultstatus"
+	_ "github.com/joint-online-judge/JOJ3/internal/parsers/sample"
 )
 
 // this file does nothing but imports to ensure all the init() functions
diff --git a/internal/parsers/clangtidy/meta.go b/internal/parsers/clangtidy/meta.go
index b48d095..4b00adf 100644
--- a/internal/parsers/clangtidy/meta.go
+++ b/internal/parsers/clangtidy/meta.go
@@ -1,6 +1,6 @@
 package clangtidy
 
-import "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+import "github.com/joint-online-judge/JOJ3/internal/stage"
 
 var name = "clangtidy"
 
diff --git a/internal/parsers/clangtidy/parser.go b/internal/parsers/clangtidy/parser.go
index a21fddc..a763954 100644
--- a/internal/parsers/clangtidy/parser.go
+++ b/internal/parsers/clangtidy/parser.go
@@ -4,8 +4,8 @@ import (
 	"fmt"
 	"strings"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
 	"github.com/criyle/go-judge/envexec"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 type Match struct {
diff --git a/internal/parsers/cppcheck/meta.go b/internal/parsers/cppcheck/meta.go
index f0ed4c9..3013177 100644
--- a/internal/parsers/cppcheck/meta.go
+++ b/internal/parsers/cppcheck/meta.go
@@ -1,6 +1,6 @@
 package cppcheck
 
-import "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+import "github.com/joint-online-judge/JOJ3/internal/stage"
 
 var name = "cppcheck"
 
diff --git a/internal/parsers/cppcheck/parser.go b/internal/parsers/cppcheck/parser.go
index 8ef650c..9f4c0d7 100644
--- a/internal/parsers/cppcheck/parser.go
+++ b/internal/parsers/cppcheck/parser.go
@@ -5,8 +5,8 @@ import (
 	"fmt"
 	"strings"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
 	"github.com/criyle/go-judge/envexec"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 type CppCheck struct{}
diff --git a/internal/parsers/cpplint/meta.go b/internal/parsers/cpplint/meta.go
index c1e2237..4f3adbd 100644
--- a/internal/parsers/cpplint/meta.go
+++ b/internal/parsers/cpplint/meta.go
@@ -1,6 +1,6 @@
 package cpplint
 
-import "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+import "github.com/joint-online-judge/JOJ3/internal/stage"
 
 var name = "cpplint"
 
diff --git a/internal/parsers/cpplint/parser.go b/internal/parsers/cpplint/parser.go
index aba73af..881ea54 100644
--- a/internal/parsers/cpplint/parser.go
+++ b/internal/parsers/cpplint/parser.go
@@ -5,7 +5,7 @@ import (
 	"regexp"
 	"strconv"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 type Conf struct {
diff --git a/internal/parsers/diff/meta.go b/internal/parsers/diff/meta.go
index d10746b..023d1c0 100644
--- a/internal/parsers/diff/meta.go
+++ b/internal/parsers/diff/meta.go
@@ -1,6 +1,6 @@
 package diff
 
-import "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+import "github.com/joint-online-judge/JOJ3/internal/stage"
 
 var name = "diff"
 
diff --git a/internal/parsers/diff/parser.go b/internal/parsers/diff/parser.go
index af2f451..be70396 100644
--- a/internal/parsers/diff/parser.go
+++ b/internal/parsers/diff/parser.go
@@ -7,8 +7,8 @@ import (
 	"strings"
 	"unicode"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
 	"github.com/criyle/go-judge/envexec"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 // operation represents the type of edit operation.
diff --git a/internal/parsers/dummy/meta.go b/internal/parsers/dummy/meta.go
index fd19c0d..202fad8 100644
--- a/internal/parsers/dummy/meta.go
+++ b/internal/parsers/dummy/meta.go
@@ -1,6 +1,6 @@
 package dummy
 
-import "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+import "github.com/joint-online-judge/JOJ3/internal/stage"
 
 var name = "dummy"
 
diff --git a/internal/parsers/dummy/parser.go b/internal/parsers/dummy/parser.go
index 9e105c8..5992f19 100644
--- a/internal/parsers/dummy/parser.go
+++ b/internal/parsers/dummy/parser.go
@@ -1,7 +1,7 @@
 package dummy
 
 import (
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 type Conf struct {
diff --git a/internal/parsers/healthcheck/meta.go b/internal/parsers/healthcheck/meta.go
index decae3b..4c14311 100644
--- a/internal/parsers/healthcheck/meta.go
+++ b/internal/parsers/healthcheck/meta.go
@@ -1,6 +1,6 @@
 package healthcheck
 
-import "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+import "github.com/joint-online-judge/JOJ3/internal/stage"
 
 var name = "healthcheck"
 
diff --git a/internal/parsers/healthcheck/parser.go b/internal/parsers/healthcheck/parser.go
index 2673f93..0408695 100644
--- a/internal/parsers/healthcheck/parser.go
+++ b/internal/parsers/healthcheck/parser.go
@@ -3,8 +3,8 @@ package healthcheck
 import (
 	"fmt"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
 	"github.com/criyle/go-judge/envexec"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 type Healthcheck struct{}
diff --git a/internal/parsers/keyword/meta.go b/internal/parsers/keyword/meta.go
index 6583a38..36814af 100644
--- a/internal/parsers/keyword/meta.go
+++ b/internal/parsers/keyword/meta.go
@@ -1,6 +1,6 @@
 package keyword
 
-import "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+import "github.com/joint-online-judge/JOJ3/internal/stage"
 
 var name = "keyword"
 
diff --git a/internal/parsers/keyword/parser.go b/internal/parsers/keyword/parser.go
index 92ce759..58f7a1c 100644
--- a/internal/parsers/keyword/parser.go
+++ b/internal/parsers/keyword/parser.go
@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"strings"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 type Match struct {
diff --git a/internal/parsers/resultstatus/meta.go b/internal/parsers/resultstatus/meta.go
index 349b681..579d2bb 100644
--- a/internal/parsers/resultstatus/meta.go
+++ b/internal/parsers/resultstatus/meta.go
@@ -1,6 +1,6 @@
 package resultstatus
 
-import "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+import "github.com/joint-online-judge/JOJ3/internal/stage"
 
 var name = "result-status"
 
diff --git a/internal/parsers/resultstatus/parser.go b/internal/parsers/resultstatus/parser.go
index 5922fce..cec2c10 100644
--- a/internal/parsers/resultstatus/parser.go
+++ b/internal/parsers/resultstatus/parser.go
@@ -3,8 +3,8 @@ package resultstatus
 import (
 	"fmt"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
 	"github.com/criyle/go-judge/envexec"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
 )
 
 type Conf struct {
diff --git a/internal/parsers/sample/meta.go b/internal/parsers/sample/meta.go
index 82f92db..cfae4e8 100644
--- a/internal/parsers/sample/meta.go
+++ b/internal/parsers/sample/meta.go
@@ -1,6 +1,6 @@
 package sample
 
-import "focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
+import "github.com/joint-online-judge/JOJ3/internal/stage"
 
 var name = "sample"
 
diff --git a/internal/parsers/sample/parser.go b/internal/parsers/sample/parser.go
index 268fec6..2e670c0 100644
--- a/internal/parsers/sample/parser.go
+++ b/internal/parsers/sample/parser.go
@@ -4,9 +4,9 @@ import (
 	"encoding/json"
 	"fmt"
 
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/internal/stage"
-	"focs.ji.sjtu.edu.cn/git/JOJ/JOJ3/pkg/sample"
 	"github.com/criyle/go-judge/envexec"
+	"github.com/joint-online-judge/JOJ3/internal/stage"
+	"github.com/joint-online-judge/JOJ3/pkg/sample"
 )
 
 type Conf struct {