diff --git a/mprelude.cabal b/mprelude.cabal
--- a/mprelude.cabal
+++ b/mprelude.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: c22e895234b6d395e83b976ef8dd4304e1564c4457b5865a76c21071dcf65271
+-- hash: 21897a688f4118dd9ae15e2202c75c637f5d96a24df55017cbaccdbc05c7a93b
 
 name:           mprelude
-version:        0.2.0
+version:        0.2.1
 synopsis:       A minimalish prelude.
 description:    Prelude extracted from observing NoImplicitPrelude using
                 projects by https://github.com/mbj.
@@ -44,9 +44,9 @@
   ghc-options: -Wall -Wcompat -Widentities -Wimplicit-prelude -Wincomplete-record-updates -Wincomplete-uni-patterns -Wmissing-exported-signatures -Wmissing-local-signatures -Wmonomorphism-restriction -Wredundant-constraints -fplugin=SourceConstraints -funbox-strict-fields
   build-depends:
       base >4.12 && <14.15
-    , source-constraints >=0.0.1 && <0.1
+    , source-constraints >=0.0.2 && <0.1
     , text >=1.2 && <1.3
-    , unliftio-core >=0.1 && <0.2
+    , unliftio-core >=0.2 && <0.3
   if flag(development)
     ghc-options: -Werror
   else
@@ -63,9 +63,9 @@
   build-depends:
       base >4.12 && <14.15
     , devtools
-    , source-constraints >=0.0.1 && <0.1
+    , source-constraints >=0.0.2 && <0.1
     , text >=1.2 && <1.3
-    , unliftio-core >=0.1 && <0.2
+    , unliftio-core >=0.2 && <0.3
   if flag(development)
     ghc-options: -Werror
   else