diff --git a/README.md b/README.md
index 4c9e093..fd32e24 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 [![MELPA](https://melpa.org/packages/lsp-java-badge.svg)](https://melpa.org/#/lsp-java)
-[![Build Status](https://travis-ci.com/emacs-lsp/lsp-java.svg?branch=master)](https://travis-ci.com/emacs-lsp/lsp-java)
+[![Build Status](https://github.com/emacs-lsp/lsp-java/workflows/CI/badge.svg?branch=master)](https://github.com/emacs-lsp/lsp-java/actions)
 [![Join the chat at https://gitter.im/emacs-lsp/lsp-mode](https://badges.gitter.im/emacs-lsp/lsp-mode.svg)](https://gitter.im/emacs-lsp/lsp-mode?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
 Emacs Java IDE using [Eclipse JDT Language Server](https://projects.eclipse.org/projects/eclipse.jdt.ls).
diff --git a/lsp-java-boot.el b/lsp-java-boot.el
index ce0dc8a..b589c58 100755
--- a/lsp-java-boot.el
+++ b/lsp-java-boot.el
@@ -88,12 +88,12 @@ Store CALLBACK to use it `sts/highlight'."
 (cl-defmethod lsp-execute-command
   (_server (_command (eql sts.open.url)) params)
   "Execute open url command from PARAMS data."
-  (browse-url (seq-first params)))
+  (browse-url (lsp-seq-first params)))
 
 (cl-defmethod lsp-execute-command
   (_server (_command (eql sts.showHoverAtPosition)) params)
   "Execute show hover at position command with PARAMS data."
-  (goto-char (lsp--position-to-point (seq-first params)))
+  (goto-char (lsp--position-to-point (lsp-seq-first params)))
   (lsp-describe-thing-at-point))
 
 (defun lsp-java-boot--sts-hightlight (workspace params)
diff --git a/lsp-jt.el b/lsp-jt.el
index 87120e3..34f8e2d 100644
--- a/lsp-jt.el
+++ b/lsp-jt.el
@@ -135,7 +135,7 @@
   (lsp-java-with-jdtls
     (lsp-send-execute-command
      "vscode.java.test.search.items"
-     (vector (json-serialize `(:uri ,root
+     (vector (lsp--json-serialize `(:uri ,root
                                     :level ,level
                                     ,@(when full-name (list :fullName full-name))))))))