--- a/pqueue.cabal
+++ b/pqueue.cabal
@@ -30,8 +30,8 @@ library
   default-language:
     Haskell2010
   build-depends:
-  { base >= 4.8 && < 4.19
-  , deepseq >= 1.3 && < 1.5
+  { base >= 4.8 && < 4.22
+  , deepseq >= 1.3 && < 1.6
   , indexed-traversable >= 0.1 && < 0.2
   }
   exposed-modules:
@@ -72,8 +72,8 @@ test-suite test
   type: exitcode-stdio-1.0
   main-is: PQueueTests.hs
   build-depends:
-  { base >= 4.8 && < 4.19
-  , deepseq >= 1.3 && < 1.5
+  { base >= 4.8 && < 4.22
+  , deepseq >= 1.3 && < 1.6
   , indexed-traversable >= 0.1 && < 0.2
   , tasty
   , tasty-quickcheck
@@ -118,7 +118,7 @@ benchmark minqueue-benchmarks
   build-depends:
       base          >= 4.8 && < 5
     , pqueue
-    , deepseq       >= 1.3 && < 1.5
+    , deepseq       >= 1.3 && < 1.6
     , random        >= 1.2 && < 1.3
     , tasty-bench   >= 0.3 && < 0.4
 
