diff --git a/go.mod b/go.mod
index 036ff95..71ca55c 100644
--- a/go.mod
+++ b/go.mod
@@ -1,16 +1,16 @@
 module github.com/edgelesssys/ego
 
-go 1.20
+go 1.21
 
 require (
+	github.com/go-jose/go-jose/v4 v4.0.2
 	github.com/stretchr/testify v1.9.0
-	gopkg.in/square/go-jose.v2 v2.6.0
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/crypto v0.24.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index f52d322..943ce0a 100644
--- a/go.sum
+++ b/go.sum
@@ -1,16 +1,16 @@
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-jose/go-jose/v4 v4.0.2 h1:R3l3kkBds16bO7ZFAEEcofK0MkrAJt3jlJznWZG0nvk=
+github.com/go-jose/go-jose/v4 v4.0.2/go.mod h1:WVf9LFMHh/QVrmqrOfqun0C45tMe3RoiKJMPvgWwLfY=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
-golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
+golang.org/x/crypto v0.24.0 h1:mnl8DM0o513X8fdIkmyFE/5hTYxbwYOjDS/+rK6qpRI=
+golang.org/x/crypto v0.24.0/go.mod h1:Z1PMYSOR5nyMcyAVAIQSKCDwalqy85Aqn1x3Ws4L5DM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/square/go-jose.v2 v2.6.0 h1:NGk74WTnPKBNUhNzQX7PYcTLUjoq7mzKk2OKbvwk2iI=
-gopkg.in/square/go-jose.v2 v2.6.0/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/internal/attestation/maa.go b/internal/attestation/maa.go
index 5d592b0..ec88d95 100644
--- a/internal/attestation/maa.go
+++ b/internal/attestation/maa.go
@@ -21,8 +21,8 @@ import (
 	"net/url"
 	"time"
 
-	"gopkg.in/square/go-jose.v2"
-	"gopkg.in/square/go-jose.v2/jwt"
+	"github.com/go-jose/go-jose/v4"
+	"github.com/go-jose/go-jose/v4/jwt"
 )
 
 // CreateAzureAttestationToken creates a Microsoft Azure Attestation Token by sending a report
@@ -98,7 +98,7 @@ func VerifyAzureAttestationToken(rawToken string, baseURL *url.URL) (Report, err
 	}
 
 	// Parse token.
-	token, err := jwt.ParseSigned(rawToken)
+	token, err := jwt.ParseSigned(rawToken, []jose.SignatureAlgorithm{jose.RS256})
 	if err != nil {
 		return Report{}, err
 	}
diff --git a/internal/attestation/maa_test.go b/internal/attestation/maa_test.go
index 828e308..b0d8592 100644
--- a/internal/attestation/maa_test.go
+++ b/internal/attestation/maa_test.go
@@ -23,9 +23,9 @@ import (
 	"testing"
 	"time"
 
+	"github.com/go-jose/go-jose/v4"
+	"github.com/go-jose/go-jose/v4/jwt"
 	"github.com/stretchr/testify/require"
-	"gopkg.in/square/go-jose.v2"
-	"gopkg.in/square/go-jose.v2/jwt"
 )
 
 func TestCreateAzureAttestationToken(t *testing.T) {
@@ -245,7 +245,7 @@ func TestVerifyAzureAttestationToken(t *testing.T) {
 		}
 		sig, err := jose.NewSigner(jose.SigningKey{Algorithm: jose.RS256, Key: test.Key}, (&jose.SignerOptions{}).WithType("JWT").WithHeader("kid", "aaa"))
 		require.NoError(err)
-		rawToken, err := jwt.Signed(sig).Claims(publicClaims).Claims(privateClaims).CompactSerialize()
+		rawToken, err := jwt.Signed(sig).Claims(publicClaims).Claims(privateClaims).Serialize()
 		require.NoError(err)
 		//
 		// Verify token and check report.