diff --git a/cmd/lavender/serve.go b/cmd/lavender/serve.go
index 8ae7075..23fba2b 100644
--- a/cmd/lavender/serve.go
+++ b/cmd/lavender/serve.go
@@ -3,7 +3,9 @@ package main
 import (
 	"context"
 	"crypto/rand"
+	"crypto/x509"
 	"encoding/json"
+	"errors"
 	"flag"
 	"github.com/1f349/lavender/server"
 	"github.com/1f349/lavender/server/pages"
@@ -71,6 +73,10 @@ func normalLoad(startUp server.Conf, wd string) {
 	if err != nil {
 		log.Fatal("[Lavender] Failed to load or create MJWT signer:", err)
 	}
+	err = os.WriteFile("lavender.public.key", x509.MarshalPKCS1PublicKey(mSign.PublicKey()), 0600)
+	if err != nil && !errors.Is(err, os.ErrExist) {
+		log.Fatal("[Lavender] Failed to save MJWT public key:", err)
+	}
 
 	if err := pages.LoadPages(wd); err != nil {
 		log.Fatal("[Lavender] Failed to load page templates:", err)
diff --git a/go.mod b/go.mod
index 529d0e3..0a3da46 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ require (
 	github.com/1f349/overlapfs v0.0.1
 	github.com/1f349/violet v0.0.10
 	github.com/MrMelon54/exit-reload v0.0.1
-	github.com/MrMelon54/mjwt v0.1.1
+	github.com/MrMelon54/mjwt v0.1.2
 	github.com/golang-jwt/jwt/v4 v4.5.0
 	github.com/google/subcommands v1.2.0
 	github.com/google/uuid v1.3.1
diff --git a/go.sum b/go.sum
index 0665f19..6428c3e 100644
--- a/go.sum
+++ b/go.sum
@@ -9,6 +9,8 @@ github.com/MrMelon54/exit-reload v0.0.1 h1:sxHa59tNEQMcikwuX2+93lw6Vi1+R7oCRF8a0
 github.com/MrMelon54/exit-reload v0.0.1/go.mod h1:PLiSfmUzwdpTTQP3BBfUPhkqPwaIZjx0DuXBnM76Bug=
 github.com/MrMelon54/mjwt v0.1.1 h1:m+aTpxbhQCrOPKHN170DQMFR5r938LkviU38unob5Jw=
 github.com/MrMelon54/mjwt v0.1.1/go.mod h1:oYrDBWK09Hju98xb+bRQ0wy+RuAzacxYvKYOZchR2Tk=
+github.com/MrMelon54/mjwt v0.1.2 h1:uYjEWybACH/Kt1lFyfqFaU1QX/Kh1Gn72jtxoxaG1F0=
+github.com/MrMelon54/mjwt v0.1.2/go.mod h1:oYrDBWK09Hju98xb+bRQ0wy+RuAzacxYvKYOZchR2Tk=
 github.com/MrMelon54/rescheduler v0.0.2 h1:efrRwr0BYlkaXFucZDjQqRyIawZiMEAnzjea46Bs9Oc=
 github.com/MrMelon54/rescheduler v0.0.2/go.mod h1:OQDFtZHdS4/qA/r7rtJUQA22/hbpnZ9MGQCXOPjhC6w=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=