diff --git a/common/tokenexchange/tokenprovider.go b/common/tokenexchange/tokenprovider.go
index b101b6f..895e473 100644
--- a/common/tokenexchange/tokenprovider.go
+++ b/common/tokenexchange/tokenprovider.go
@@ -100,6 +100,7 @@ func (t TokenExchangeProvider) GetToken(ctx context.Context, scope string, parti
 	formData := url.Values{}
 	formData.Set("grant_type", "urn:ietf:params:oauth:grant-type:token-exchange")
 	formData.Set("subject_token", string(content))
+	formData.Set("subject_token_type", "urn:ietf:params:oauth:token-type:jwt")
 	formData.Set("resource", participantContextID)
 	formData.Set("scope", scope)
 	formData.Set("audience", t.tokenExchangeAudience)
diff --git a/common/tokenexchange/tokenprovider_test.go b/common/tokenexchange/tokenprovider_test.go
index 84a74d4..0fd8498 100644
--- a/common/tokenexchange/tokenprovider_test.go
+++ b/common/tokenexchange/tokenprovider_test.go
@@ -67,6 +67,7 @@ func TestGetToken_Success(t *testing.T) {
 		require.NoError(t, err)
 		assert.Equal(t, "urn:ietf:params:oauth:grant-type:token-exchange", form.Get("grant_type"))
 		assert.Equal(t, testSubjectToken, form.Get("subject_token"))
+		assert.Equal(t, "urn:ietf:params:oauth:token-type:jwt", form.Get("subject_token_type"))
 		assert.Equal(t, testParticipantContext, form.Get("resource"))
 		assert.Equal(t, testScope, form.Get("scope"))
 		assert.Equal(t, testAudience, form.Get("audience"))