diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Revision history for net-spider-rpl-cli
 
+## 0.1.3.4  -- 2022-01-02
+
+* Confirm test with `base-4.15`
+
 ## 0.1.3.3  -- 2020-12-30
 
 * Confirm test with `greskell-1.2.0.0` and `optparse-applicative-0.16.0.0`
diff --git a/app/Main.hs b/app/Main.hs
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -1,3 +1,6 @@
 module Main (main) where
 
-import NetSpider.RPL.CLI (main)
+import qualified NetSpider.RPL.CLI as CLI
+
+main :: IO ()
+main = CLI.main
diff --git a/net-spider-rpl-cli.cabal b/net-spider-rpl-cli.cabal
--- a/net-spider-rpl-cli.cabal
+++ b/net-spider-rpl-cli.cabal
@@ -1,5 +1,5 @@
 name:                   net-spider-rpl-cli
-version:                0.1.3.3
+version:                0.1.3.4
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -27,7 +27,7 @@
   exposed-modules:      NetSpider.RPL.CLI,
                         NetSpider.RPL.CLI.Analyze
   -- other-modules:        
-  build-depends:        base >=4.11.1.0 && <4.15,
+  build-depends:        base >=4.11.1.0 && <4.16,
                         net-spider >=0.4.3.0 && <0.5,
                         net-spider-rpl >=0.4.0.0 && <0.5,
                         net-spider-cli >=0.2.0.0 && <0.3,
@@ -66,6 +66,7 @@
   -- other-extensions:     
   other-modules:        NetSpider.RPL.CLISpec,
                         NetSpider.RPL.CLI.AnalyzeSpec
+  build-tool-depends:   hspec-discover:hspec-discover
   build-depends:        base, net-spider-rpl-cli, net-spider, net-spider-rpl, optparse-applicative, net-spider-cli,
                         text, monad-logger,
                         hspec >=2.5.5,