diff --git a/markdown_it/__init__.py b/markdown_it/__init__.py
index b348aab9..03a783aa 100644
--- a/markdown_it/__init__.py
+++ b/markdown_it/__init__.py
@@ -1,4 +1,4 @@
 from .main import MarkdownIt  # noqa: F401
 
 
-__version__ = "0.3.0"
+__version__ = "0.3.1"
diff --git a/markdown_it/extensions/myst_blocks/index.py b/markdown_it/extensions/myst_blocks/index.py
index 1cfc6f35..3330c81d 100644
--- a/markdown_it/extensions/myst_blocks/index.py
+++ b/markdown_it/extensions/myst_blocks/index.py
@@ -5,7 +5,7 @@
 from markdown_it.common.utils import charCodeAt, isSpace, escapeHtml
 
 
-TARGET_PATTERN = re.compile(r"^\(([a-zA-Z0-9\_\-\+\:]{1,36})\)\=\s*$")
+TARGET_PATTERN = re.compile(r"^\(([a-zA-Z0-9\|\@\<\>\*\.\/\_\-\+\:]{1,36})\)\=\s*$")
 
 
 def myst_block_plugin(md: MarkdownIt):