diff --git a/news/5508.bugfix.rst b/news/5508.bugfix.rst
new file mode 100644
index 0000000000..4599e6882c
--- /dev/null
+++ b/news/5508.bugfix.rst
@@ -0,0 +1 @@
+Fix regression: pipenv does not sync indexes to lockfile.
diff --git a/pipenv/project.py b/pipenv/project.py
index 6b28ccec1a..34f2ad3a3f 100644
--- a/pipenv/project.py
+++ b/pipenv/project.py
@@ -759,13 +759,7 @@ def get_or_create_lockfile(self, categories, from_pipfile=False):
     def get_lockfile_meta(self):
         from .vendor.plette.lockfiles import PIPFILE_SPEC_CURRENT
 
-        if self.lockfile_exists:
-            sources = (
-                self.load_lockfile(expand_env_vars=False)
-                .get("_meta", {})
-                .get("sources", [])
-            )
-        elif "source" in self.parsed_pipfile:
+        if "source" in self.parsed_pipfile:
             sources = [dict(source) for source in self.parsed_pipfile["source"]]
         else:
             sources = self.pipfile_sources(expand_vars=False)