diff --git a/library/PrimitiveExtras/Bitmap.hs b/library/PrimitiveExtras/Bitmap.hs
--- a/library/PrimitiveExtras/Bitmap.hs
+++ b/library/PrimitiveExtras/Bitmap.hs
@@ -22,7 +22,7 @@
 )
 where
 
-import PrimitiveExtras.Prelude hiding (traverse_, insert, null, empty)
+import PrimitiveExtras.Prelude hiding (traverse_, insert, null, empty, singleton)
 import PrimitiveExtras.Types
 import qualified DeferredFolds.Unfoldl as Unfoldl
 
diff --git a/library/PrimitiveExtras/By6Bits.hs b/library/PrimitiveExtras/By6Bits.hs
--- a/library/PrimitiveExtras/By6Bits.hs
+++ b/library/PrimitiveExtras/By6Bits.hs
@@ -21,7 +21,7 @@
 )
 where
 
-import PrimitiveExtras.Prelude hiding (lookup, empty, insert, null)
+import PrimitiveExtras.Prelude hiding (lookup, empty, insert, null, singleton)
 import PrimitiveExtras.Types
 import qualified PrimitiveExtras.Prelude as Prelude
 import qualified PrimitiveExtras.Bitmap as Bitmap
diff --git a/primitive-extras.cabal b/primitive-extras.cabal
--- a/primitive-extras.cabal
+++ b/primitive-extras.cabal
@@ -1,5 +1,5 @@
 name: primitive-extras
-version: 0.10.1
+version: 0.10.1.1
 category: Primitive
 synopsis: Extras for the "primitive" library
 homepage: https://github.com/metrix-ai/primitive-extras
@@ -41,7 +41,7 @@
     foldl >=1 && <2,
     list-t >=1.0.1 && <1.1,
     primitive >=0.7 && <0.8,
-    primitive-unlifted >=0.1.1.0 && <0.2,
+    primitive-unlifted >=1.0 && <1.1,
     profunctors >=5 && <6,
     vector >=0.12 && <0.13