diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index a289c85..ca4678c 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -2959,6 +2959,9 @@
 	\   setf FALLBACK conf |
 	\ endif
 
+" Yarn lock
+au BufNewFile,BufRead yarn.lock			setf yaml
+
 
 " If the GUI is already running, may still need to install the Syntax menu.
 " Don't do it when the 'M' flag is included in 'guioptions'.
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index aba03e4..a8c7ef4 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -820,7 +820,7 @@
     xsd: ['file.xsd'],
     xslt: ['file.xsl', 'file.xslt'],
     yacc: ['file.yy', 'file.yxx', 'file.y++'],
-    yaml: ['file.yaml', 'file.yml', 'file.eyaml', 'any/.bundle/config', '.clangd', '.clang-format', '.clang-tidy', 'file.mplstyle'],
+    yaml: ['file.yaml', 'file.yml', 'file.eyaml', 'any/.bundle/config', '.clangd', '.clang-format', '.clang-tidy', 'file.mplstyle', 'yarn.lock'],
     yang: ['file.yang'],
     yuck: ['file.yuck'],
     z8a: ['file.z8a'],
diff --git a/src/version.c b/src/version.c
index 47d8e14..7eb84b7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    248,
+/**/
     247,
 /**/
     246,