diff --git a/sylloge/oaei_loader.py b/sylloge/oaei_loader.py
index 44dcac1..cfa1cf6 100644
--- a/sylloge/oaei_loader.py
+++ b/sylloge/oaei_loader.py
@@ -117,7 +117,7 @@ class OAEI(CacheableEADataset[DataFrameType]):
     _CLASS_LINKS_PATH: str = "class_links_parquet"
     _PROPERTY_LINKS_PATH: str = "property_links_parquet"
 
-    _TASK_URLS: MappingProxyType[OAEI_TASK_NAME, URL_SHA512_HASH] = MappingProxyType(
+    _TASK_URLS = MappingProxyType(
         {
             "starwars-swg": URL_SHA512_HASH(
                 "https://cloud.scadsai.uni-leipzig.de/index.php/s/WzRxffgoq2qqn7q/download/starwars-swg.tar.gz",
diff --git a/sylloge/open_ea_loader.py b/sylloge/open_ea_loader.py
index fbae66b..67fc7bb 100644
--- a/sylloge/open_ea_loader.py
+++ b/sylloge/open_ea_loader.py
@@ -44,9 +44,7 @@ class OpenEA(ZipEADatasetWithPreSplitFolds):
         "9f86fbee94e1e78a7ee056dd69df1ce3fc210ae07dc64955ad2bfda7450545ef"
     )
 
-    _GRAPH_PAIR_TO_DS_NAMES: MappingProxyType[
-        GraphPair, Tuple[str, str]
-    ] = MappingProxyType(
+    _GRAPH_PAIR_TO_DS_NAMES = MappingProxyType(
         {
             "D_W": ("DBpedia", "Wikidata"),
             "D_Y": ("DBpedia", "YAGO"),