diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Revision history for net-spider
 
+## 0.4.3.7  -- 2022-01-02
+
+* Confirm test with `base-4.15`
+
 ## 0.4.3.6  -- 2021-02-11
 
 * Confirm test with `doctest-0.18`.
diff --git a/net-spider.cabal b/net-spider.cabal
--- a/net-spider.cabal
+++ b/net-spider.cabal
@@ -1,5 +1,5 @@
 name:                   net-spider
-version:                0.4.3.6
+version:                0.4.3.7
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -53,7 +53,7 @@
                         NetSpider.Spider.Internal.Spider,
                         NetSpider.Queue,
                         NetSpider.Query.Internal
-  build-depends:        base >=4.10.1 && <4.15,
+  build-depends:        base >=4.10.1 && <4.16,
                         time >=1.8.0.2 && <1.10,
                         vector >=0.12.0.1 && <0.13,
                         greskell-websocket >=0.1.1 && <0.2,
@@ -64,7 +64,7 @@
                         unordered-containers >=0.2.8 && <0.3,
                         hashable >=1.2.6.1 && <1.4,
                         containers >=0.5.10.2 && <0.7,
-                        data-interval >=1.3.0 && <2.1,
+                        data-interval >=1.3.0 && <2.2,
                         extended-reals >=0.2.3.0 && <0.3,
                         monad-logger >=0.3.28.1 && <0.4,
                         scientific >=0.3.6.2 && <0.4,
@@ -99,6 +99,7 @@
                         JSONUtil,
                         SnapshotTestCase,
                         TestCommon
+  build-tool-depends:   hspec-discover:hspec-discover
   build-depends:        base, net-spider, vector, text, aeson, bytestring, time,
                         greskell, hashable,
                         hspec >=2.4.4
@@ -135,6 +136,7 @@
   hs-source-dirs:       test
   ghc-options:          -Wall -fno-warn-unused-imports "-with-rtsopts=-M512m"
   main-is:              DocTest.hs
+  build-tool-depends:   doctest-discover:doctest-discover
   build-depends:        base,
                         doctest >=0.13 && <0.19,
                         doctest-discover >=0.1.0.7 && <0.3
