diff --git a/.circleci/config.yml b/.circleci/config.yml
index 4b4a530..b673d32 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -11,7 +11,8 @@ jobs:
     - image: ubuntu:18.04
     steps:
     - run: apt-get update
-    - run: apt-get --yes install cabal-install haskell-stack libz-dev netbase locales git
+    - run: apt-get --yes install cabal-install haskell-stack libz-dev netbase locales git curl
+    - run: curl -sSL https://get.haskellstack.org/ | sh -s - -f
     - add_ssh_keys
     - checkout
     - run: git fetch
diff --git a/empires.cabal b/empires.cabal
index e6dd873..9d2273d 100644
--- a/empires.cabal
+++ b/empires.cabal
@@ -5,7 +5,7 @@ cabal-version:      >= 1.10
 
 executable site
   main-is:          site.hs
-  build-depends:    base == 4.*
-                  , hakyll == 4.6.*
+  build-depends:    base >= 4.0
+                  , hakyll >= 4.6.0
   ghc-options:      -threaded
   default-language: Haskell2010
diff --git a/posts/2017-05-04-textures.markdown b/posts/2017-05-04-textures.markdown
index 36d94f4..1ecb101 100644
--- a/posts/2017-05-04-textures.markdown
+++ b/posts/2017-05-04-textures.markdown
@@ -1,5 +1,5 @@
 ---
-title: A new goal: polish
+title: "A new goal: polish"
 author: Tama
 ---
 
diff --git a/stack.yaml b/stack.yaml
index bff7f4c..4214c1e 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1 +1,4 @@
-resolver: lts-2.22
+resolver: lts-13.6
+extra-deps:
+- lrucache-1.2.0.1
+- hakyll-4.12.5.1