diff --git a/random.cabal b/random.cabal
index 458b8d0a..5c71d4e3 100644
--- a/random.cabal
+++ b/random.cabal
@@ -132,7 +132,7 @@ test-suite doctests
     default-language: Haskell2010
     build-depends:
         base,
-        doctest >=0.15 && <0.22
+        doctest >=0.15 && <0.23
     if impl(ghc >= 8.2) && impl(ghc < 8.10)
         build-depends:
             mwc-random >=0.13 && <0.16,