diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -1,3 +1,7 @@
+2.1.3 [2023.08.07]
+------------------
+* Allow building with `deepseq-1.5.*`.
+
 2.1.2 [2021.11.16]
 ------------------
 * Add an `Eq Strand` instance.
diff --git a/examples/trifecta-examples.cabal b/examples/trifecta-examples.cabal
--- a/examples/trifecta-examples.cabal
+++ b/examples/trifecta-examples.cabal
@@ -20,8 +20,10 @@
              , GHC == 8.6.5
              , GHC == 8.8.4
              , GHC == 8.10.7
-             , GHC == 9.0.1
-             , GHC == 9.2.1
+             , GHC == 9.0.2
+             , GHC == 9.2.7
+             , GHC == 9.4.5
+             , GHC == 9.6.2
 extra-source-files: RFC2616.txt RFC2616-malformed.txt
 
 source-repository head
diff --git a/src/Text/Trifecta/Rendering.hs b/src/Text/Trifecta/Rendering.hs
--- a/src/Text/Trifecta/Rendering.hs
+++ b/src/Text/Trifecta/Rendering.hs
@@ -68,7 +68,7 @@
 import           Data.Function                                (on)
 import           Data.Hashable
 import           Data.Int                                     (Int64)
-import           Data.List                                    (groupBy)
+import qualified Data.List.NonEmpty                           as NE
 import           Data.Maybe
 import           Data.Semigroup
 import           Data.Semigroup.Reducer
@@ -291,8 +291,8 @@
     margin = fill gutterWidth space <+> separator
     ln y = (sgr gutterEffects (if y == 0 then gutter else margin) <+>)
          $ hcat
-         $ P.map (\g -> sgr (fst (P.head g)) (pretty (P.map snd g)))
-         $ groupBy ((==) `on` fst)
+         $ P.map (\g -> sgr (fst (NE.head g)) (pretty (fmap snd g)))
+         $ NE.groupBy ((==) `on` fst)
          [ a ! (y,i) | i <- [lo..hi] ]
 
 window :: Int64 -> Int64 -> Int64 -> (Int64, Int64)
diff --git a/trifecta.cabal b/trifecta.cabal
--- a/trifecta.cabal
+++ b/trifecta.cabal
@@ -1,6 +1,6 @@
 name:          trifecta
 category:      Text, Parsing, Diagnostics, Pretty Printer, Logging
-version:       2.1.2
+version:       2.1.3
 license:       BSD3
 cabal-version: 1.18
 license-file:  LICENSE
@@ -27,8 +27,10 @@
              , GHC == 8.6.5
              , GHC == 8.8.4
              , GHC == 8.10.7
-             , GHC == 9.0.1
-             , GHC == 9.2.1
+             , GHC == 9.0.2
+             , GHC == 9.2.7
+             , GHC == 9.4.5
+             , GHC == 9.6.2
 
 extra-doc-files:
   images/*.png
@@ -66,29 +68,29 @@
     Text.Trifecta.Util.Pretty
 
   build-depends:
-    ansi-terminal               >= 0.6     && < 0.12,
+    ansi-terminal               >= 0.6     && < 1.1,
     array                       >= 0.5.1.1 && < 0.6,
     base                        >= 4.9     && < 5,
     blaze-builder               >= 0.3.0.1 && < 0.5,
     blaze-html                  >= 0.9     && < 0.10,
     blaze-markup                >= 0.8     && < 0.9,
-    bytestring                  >= 0.9.1   && < 0.12,
+    bytestring                  >= 0.9.1   && < 0.13,
     charset                     >= 0.3.5.1 && < 1,
     comonad                     >= 5       && < 6,
     containers                  >= 0.5.7.0 && < 0.7,
-    deepseq                     >= 1.4.2.0 && < 1.5,
+    deepseq                     >= 1.4.2.0 && < 1.6,
     fingertree                  >= 0.1     && < 0.2,
     ghc-prim,
     hashable                    >= 1.2.4   && < 1.5,
     indexed-traversable         >= 0.1.1   && < 0.2,
     lens                        >= 4.14    && < 6,
-    mtl                         >= 2.2.1   && < 2.3,
+    mtl                         >= 2.2.1   && < 2.4,
     parsers                     >= 0.12.1  && < 1,
     prettyprinter               >= 1.7     && < 2,
     prettyprinter-ansi-terminal >= 1.1.2   && < 2,
     profunctors                 >= 5.2     && < 6,
     reducers                    >= 3.12.1  && < 4,
-    transformers                >= 0.5     && < 0.6,
+    transformers                >= 0.5     && < 0.7,
     unordered-containers        >= 0.2.1   && < 0.3,
     utf8-string                 >= 0.3.6   && < 1.1