diff --git a/poetry/core/packages/package.py b/poetry/core/packages/package.py
index aac39afa7..c7c19669c 100644
--- a/poetry/core/packages/package.py
+++ b/poetry/core/packages/package.py
@@ -17,7 +17,7 @@
 from .utils.utils import create_nested_marker
 
 
-AUTHOR_REGEX = re.compile(r"(?u)^(?P<name>[- .,\w\d'’\"()]+)(?: <(?P<email>.+?)>)?$")
+AUTHOR_REGEX = re.compile(r"(?u)^(?P<name>[- .,\w\d'’\"()&]+)(?: <(?P<email>.+?)>)?$")
 
 
 class Package(PackageSpecification):