diff --git a/dangerzone/updater/signatures.py b/dangerzone/updater/signatures.py
index 947e05d..f3a25f8 100644
--- a/dangerzone/updater/signatures.py
+++ b/dangerzone/updater/signatures.py
@@ -22,13 +22,13 @@ except ImportError:
     import appdirs as platformdirs  # type: ignore[no-redef]
 
 
-def get_config_dir() -> Path:
-    return Path(platformdirs.user_config_dir("dangerzone"))
+def appdata_dir() -> Path:
+    return Path(platformdirs.user_data_dir("dangerzone"))
 
 
 # XXX Store this somewhere else.
 DEFAULT_PUBKEY_LOCATION = get_resource_path("freedomofpress-dangerzone-pub.key")
-SIGNATURES_PATH = get_config_dir() / "signatures"
+SIGNATURES_PATH = appdata_dir() / "signatures"
 LAST_LOG_INDEX = SIGNATURES_PATH / "last_log_index"
 
 __all__ = [
diff --git a/tests/test_signatures.py b/tests/test_signatures.py
index da9fb99..5f7a846 100644
--- a/tests/test_signatures.py
+++ b/tests/test_signatures.py
@@ -9,7 +9,6 @@ from dangerzone import errors as dzerrors
 from dangerzone.updater import errors
 from dangerzone.updater.signatures import (
     Signature,
-    get_config_dir,
     get_last_log_index,
     get_log_index_from_signatures,
     get_remote_signatures,