diff --git a/lib/importlib_resources/abc.py b/lib/importlib_resources/abc.py
index a2b0af62..5e38ba61 100644
--- a/lib/importlib_resources/abc.py
+++ b/lib/importlib_resources/abc.py
@@ -55,6 +55,9 @@ class Traversable(Protocol):
     """
     An object with a subset of pathlib.Path methods suitable for
     traversing directories and opening files.
+
+    Any exceptions that occur when accessing the backing resource
+    may propagate unaltered.
     """
 
     @abc.abstractmethod
@@ -90,9 +93,13 @@ class Traversable(Protocol):
         """
 
     @abc.abstractmethod
-    def joinpath(self, child: StrPath) -> "Traversable":
+    def joinpath(self, *descendants: StrPath) -> "Traversable":
         """
-        Return Traversable child in self
+        Return Traversable resolved with any descendants applied.
+
+        Each descendant should be a path segment relative to self
+        and each may contain multiple levels separated by
+        ``posixpath.sep`` (``/``).
         """
 
     def __truediv__(self, child: StrPath) -> "Traversable":
diff --git a/lib/importlib_resources/simple.py b/lib/importlib_resources/simple.py
index da073cbd..d0fbf237 100644
--- a/lib/importlib_resources/simple.py
+++ b/lib/importlib_resources/simple.py
@@ -99,10 +99,19 @@ class ResourceContainer(Traversable):
     def open(self, *args, **kwargs):
         raise IsADirectoryError()
 
-    def joinpath(self, name):
+    @staticmethod
+    def _flatten(compound_names):
+        for name in compound_names:
+            yield from name.split('/')
+
+    def joinpath(self, *descendants):
+        if not descendants:
+            return self
+        names = self._flatten(descendants)
+        target = next(names)
         return next(
-            traversable for traversable in self.iterdir() if traversable.name == name
-        )
+            traversable for traversable in self.iterdir() if traversable.name == target
+        ).joinpath(*names)
 
 
 class TraversableReader(TraversableResources, SimpleReader):
diff --git a/package/requirements-package.txt b/package/requirements-package.txt
index 5acd462f..910a9fb8 100644
--- a/package/requirements-package.txt
+++ b/package/requirements-package.txt
@@ -1,5 +1,5 @@
 apscheduler==3.9.1
-importlib-resources==5.6.0
+importlib-resources==5.7.1
 pyinstaller==4.9
 pyopenssl==22.0.0
 pycryptodomex==3.14.1
diff --git a/requirements.txt b/requirements.txt
index d6b0816c..6fb9cf89 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ html5lib==1.1
 httpagentparser==1.9.2
 idna==3.3
 importlib-metadata==4.11.3
-importlib-resources==5.6.0
+importlib-resources==5.7.1
 git+https://github.com/Tautulli/ipwhois.git@master#egg=ipwhois
 IPy==1.01
 Mako==1.2.0