diff --git a/lsp.cabal b/lsp.cabal
--- a/lsp.cabal
+++ b/lsp.cabal
@@ -1,6 +1,6 @@
 cabal-version:       2.4
 name:                lsp
-version:             1.0.0.0
+version:             1.0.0.1
 synopsis:            Haskell library for the Microsoft Language Server Protocol
 
 description:         An implementation of the types, and basic message server to
@@ -31,7 +31,7 @@
                      , Language.LSP.Server.Control
                      , Language.LSP.Server.Processing
   ghc-options:         -Wall
-  build-depends:       base >= 4.9 && < 4.15
+  build-depends:       base >= 4.11 && < 4.15
                      , async
                      , aeson >=1.0.0.0
                      , attoparsec
@@ -68,7 +68,7 @@
   default-language:    Haskell2010
   ghc-options:         -Wall -Wno-unticked-promoted-constructors
 
-  build-depends:       base >= 4.9 && < 4.15
+  build-depends:       base >= 4.11 && < 4.15
                      , aeson
                      , bytestring
                      , containers
@@ -92,7 +92,7 @@
   hs-source-dirs:      example
   default-language:    Haskell2010
   ghc-options:         -Wall -Wno-unticked-promoted-constructors
-  build-depends:       base >= 4.9 && < 5
+  build-depends:       base >= 4.11 && < 5
                     -- the package library. Comment this out if you want repl changes to propagate
                      , lsp
                      , text