diff --git a/semantic-ast/semantic-ast.cabal b/semantic-ast/semantic-ast.cabal
index 27cdfd157..3cf4841f0 100644
--- a/semantic-ast/semantic-ast.cabal
+++ b/semantic-ast/semantic-ast.cabal
@@ -49,6 +49,7 @@ library
                      , pretty-simple ^>= 3.1.0.0
                      , aeson                ^>= 1.4.2.0
                      , text                 ^>= 1.2.3.1
+                     , bytestring           ^>= 0.10.8.2
   hs-source-dirs:      src
   default-language:    Haskell2010
   ghc-options:       -Wall
@@ -68,6 +69,7 @@ executable semantic-ast
                      , optparse-applicative
                      , pretty-simple
                      , aeson
+                     , bytestring
   hs-source-dirs:      src
   default-language:    Haskell2010
   ghc-options:       -Wall