diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## 2021-07-28: v5.0.11.1
 
-Uploaded to Hackage
+Uploaded to Hackage: <https://hackage.haskell.org/package/Jikka>
 
 ## 2021-07-21: v5.0.11.0
 
diff --git a/Jikka.cabal b/Jikka.cabal
--- a/Jikka.cabal
+++ b/Jikka.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           Jikka
-version:        5.0.11.1
+version:        5.0.11.2
 synopsis:       A transpiler from Python to C++ for competitive programming
 description:    Please see the README on GitHub at <https://github.com/kmyk/Jikka>
 category:       Compilers/Interpreters
@@ -137,13 +137,13 @@
   build-depends:
       ansi-terminal ==0.11.*
     , array >=0.5.3 && <0.6
-    , base ==4.14.*
+    , base >=4.12 && <5
     , containers >=0.6.0 && <0.7
     , deepseq >=1.4.4 && <1.5
     , mtl >=2.2.2 && <2.3
     , text >=1.2.3 && <1.3
     , transformers >=0.5.6 && <0.6
-    , vector >=0.12.0 && <0.13
+    , vector >=0.12.3 && <0.13
   default-language: Haskell2010
 
 executable jikka
@@ -157,13 +157,13 @@
       Jikka
     , ansi-terminal ==0.11.*
     , array >=0.5.3 && <0.6
-    , base ==4.14.*
+    , base >=4.12 && <5
     , containers >=0.6.0 && <0.7
     , deepseq >=1.4.4 && <1.5
     , mtl >=2.2.2 && <2.3
     , text >=1.2.3 && <1.3
     , transformers >=0.5.6 && <0.6
-    , vector >=0.12.0 && <0.13
+    , vector >=0.12.3 && <0.13
   default-language: Haskell2010
 
 test-suite jikka-doctest
@@ -178,14 +178,14 @@
       Jikka
     , ansi-terminal ==0.11.*
     , array >=0.5.3 && <0.6
-    , base ==4.14.*
+    , base >=4.12 && <5
     , containers >=0.6.0 && <0.7
     , deepseq >=1.4.4 && <1.5
     , doctest
     , mtl >=2.2.2 && <2.3
     , text >=1.2.3 && <1.3
     , transformers >=0.5.6 && <0.6
-    , vector >=0.12.0 && <0.13
+    , vector >=0.12.3 && <0.13
   default-language: Haskell2010
 
 test-suite jikka-test
@@ -246,7 +246,7 @@
       Jikka
     , ansi-terminal ==0.11.*
     , array >=0.5.3 && <0.6
-    , base ==4.14.*
+    , base >=4.12 && <5
     , containers >=0.6.0 && <0.7
     , deepseq >=1.4.4 && <1.5
     , hlint
@@ -255,5 +255,5 @@
     , ormolu
     , text >=1.2.3 && <1.3
     , transformers >=0.5.6 && <0.6
-    , vector >=0.12.0 && <0.13
+    , vector >=0.12.3 && <0.13
   default-language: Haskell2010
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -38,7 +38,8 @@
     -   [CONTRIBUTING.ja.md](https://github.com/kmyk/Jikka/blob/master/CONTRIBUTING.ja.md) (Japanese translation)
 -   [docs/DESIGN.md](https://github.com/kmyk/Jikka/blob/master/docs/DESIGN.md) (Japanese)
 -   [docs/how-it-works.pdf](https://github.com/kmyk/Jikka/blob/master/docs/how-it-works.pdf) (Japanese)
--   [Haddock](https://kmyk.github.io/Jikka/)
+-   [Haddock](https://hackage.haskell.org/package/Jikka)
+    -   [Haddock (master)](https://kmyk.github.io/Jikka/)
 
 
 ## Examples