diff --git a/ats-pkg.cabal b/ats-pkg.cabal
--- a/ats-pkg.cabal
+++ b/ats-pkg.cabal
@@ -1,5 +1,5 @@
 name:                ats-pkg
-version:             0.3.0.2
+version:             1.0.0.0
 synopsis:            Package manager for ATS
 description:         A collection of scripts to make building ATS projects easy.
 homepage:            https://github.com/vmchale/ats-pkg#readme
@@ -43,7 +43,7 @@
                      , parallel-io
                      , unix
                      , dhall
-                     , shake-ext >= 0.5.0.4
+                     , shake-ext >= 1.0.0.0
                      , composition-prelude >= 1.1.0.1
   default-language:    Haskell2010
   if flag(development)
diff --git a/stack.yaml b/stack.yaml
--- a/stack.yaml
+++ b/stack.yaml
@@ -3,7 +3,7 @@
 packages:
   - '.'
 extra-deps:
-  - shake-ext-0.5.0.1
+  - shake-ext-1.0.0.0
   - composition-prelude-1.1.0.1
   - language-ats-0.1.0.3
 flags: