diff --git a/portfolio.cabal b/portfolio.cabal
index f29c97c..d259508 100644
--- a/portfolio.cabal
+++ b/portfolio.cabal
@@ -71,7 +71,9 @@ executable portfolio
     -- other-extensions:
 
     -- Other library packages from which modules are imported.
-    build-depends:    base ^>=4.17.2.1
+    build-depends:    
+        base ^>=4.17.2.1,
+        hakyll,
 
     -- Directories containing source files.
     hs-source-dirs:   app