diff --git a/auth/authzserver/provider.go b/auth/authzserver/provider.go
index 19b4e9d61..ebd79bddc 100644
--- a/auth/authzserver/provider.go
+++ b/auth/authzserver/provider.go
@@ -146,15 +146,6 @@ func verifyClaims(expectedAudience sets.String, claimsRaw map[string]interface{}
 	if foundAudIndex < 0 {
 		return nil, fmt.Errorf("invalid audience [%v]", claims)
 	}
-	//
-	//if expiryClaim, found := claimsRaw[ExpiryClaim]; !found {
-	//	return nil, fmt.Errorf("missing expiry claim")
-	//} else {
-	//	expiry := expiryClaim.(float64)
-	//	if expiry < float64(time.Now().Unix()) {
-	//		return nil, fmt.Errorf("token has expired")
-	//	}
-	//}
 
 	userInfo := &service.UserInfoResponse{}
 	if userInfoClaim, found := claimsRaw[UserIDClaim]; found && userInfoClaim != nil {
diff --git a/auth/authzserver/resource_server.go b/auth/authzserver/resource_server.go
index 78e895297..5c609f46c 100644
--- a/auth/authzserver/resource_server.go
+++ b/auth/authzserver/resource_server.go
@@ -13,6 +13,7 @@ import (
 	"k8s.io/apimachinery/pkg/util/sets"
 
 	"github.com/flyteorg/flytestdlib/config"
+	jwtgo "github.com/golang-jwt/jwt/v4"
 
 	"github.com/coreos/go-oidc"
 	authConfig "github.com/flyteorg/flyteadmin/auth/config"
@@ -28,17 +29,21 @@ type ResourceServer struct {
 }
 
 func (r ResourceServer) ValidateAccessToken(ctx context.Context, expectedAudience, tokenStr string) (interfaces.IdentityContext, error) {
-	raw, err := r.signatureVerifier.VerifySignature(ctx, tokenStr)
+	_, err := r.signatureVerifier.VerifySignature(ctx, tokenStr)
 	if err != nil {
 		return nil, err
 	}
 
-	claimsRaw := map[string]interface{}{}
-	if err = json.Unmarshal(raw, &claimsRaw); err != nil {
-		return nil, fmt.Errorf("failed to unmarshal user info claim into UserInfo type. Error: %w", err)
+	t, _, err := jwtgo.NewParser().ParseUnverified(tokenStr, jwtgo.MapClaims{})
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse token: %v", err)
+	}
+
+	if err = t.Claims.Valid(); err != nil {
+		return nil, fmt.Errorf("failed to validate token: %v", err)
 	}
 
-	return verifyClaims(sets.NewString(append(r.allowedAudience, expectedAudience)...), claimsRaw)
+	return verifyClaims(sets.NewString(append(r.allowedAudience, expectedAudience)...), t.Claims.(jwtgo.MapClaims))
 }
 
 func doRequest(ctx context.Context, req *http.Request) (*http.Response, error) {
diff --git a/auth/authzserver/resource_server_test.go b/auth/authzserver/resource_server_test.go
index 38a0d0453..e17027440 100644
--- a/auth/authzserver/resource_server_test.go
+++ b/auth/authzserver/resource_server_test.go
@@ -169,7 +169,7 @@ func TestResourceServer_ValidateAccessToken(t *testing.T) {
 			t.FailNow()
 		}
 
-		assert.Contains(t, err.Error(), "failed to verify id token signature")
+		assert.Contains(t, err.Error(), "failed to validate token: Token is expired")
 	})
 }