diff --git a/setup.cfg b/setup.cfg
index e556ba19c..9bd45d45d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -61,21 +61,21 @@ install_requires =
 lookups =
     spacy_lookups_data>=0.3.2,<0.4.0
 cuda =
-    cupy>=5.0.0b4,<9.0.0
+    cupy>=5.0.0b4,<8.0.0
 cuda80 =
-    cupy-cuda80>=5.0.0b4,<9.0.0
+    cupy-cuda80>=5.0.0b4,<8.0.0
 cuda90 =
-    cupy-cuda90>=5.0.0b4,<9.0.0
+    cupy-cuda90>=5.0.0b4,<8.0.0
 cuda91 =
-    cupy-cuda91>=5.0.0b4,<9.0.0
+    cupy-cuda91>=5.0.0b4,<8.0.0
 cuda92 =
-    cupy-cuda92>=5.0.0b4,<9.0.0
+    cupy-cuda92>=5.0.0b4,<8.0.0
 cuda100 =
-    cupy-cuda100>=5.0.0b4,<9.0.0
+    cupy-cuda100>=5.0.0b4,<8.0.0
 cuda101 =
-    cupy-cuda101>=5.0.0b4,<9.0.0
+    cupy-cuda101>=5.0.0b4,<8.0.0
 cuda102 =
-    cupy-cuda102>=5.0.0b4,<9.0.0
+    cupy-cuda102>=5.0.0b4,<8.0.0
 # Language tokenizers with external dependencies
 ja =
     sudachipy>=0.4.5