diff --git a/reactive-banana/reactive-banana.cabal b/reactive-banana/reactive-banana.cabal
index e9d7914..2c41834 100644
--- a/reactive-banana/reactive-banana.cabal
+++ b/reactive-banana/reactive-banana.cabal
@@ -47,8 +47,8 @@ Library
     default-language:   Haskell98
     hs-source-dirs:     src
 
-    build-depends:      base >= 4.10 && < 5,
-                        deepseq >= 1.4.3.0 && < 1.5,
+    build-depends:      base >= 4.2 && < 5,
+                        deepseq >= 1.4.3.0 && < 1.6,
                         semigroups >= 0.13 && < 0.21,
                         containers >= 0.5 && < 0.7,
                         transformers >= 0.2 && < 0.7,
@@ -102,7 +102,7 @@ Test-Suite unit
                         Reactive.Banana.Test.Low.GraphGC
     build-depends:      base >= 4.7 && < 5,
                         containers,
-                        deepseq >= 1.4.3.0 && < 1.5,
+                        deepseq >= 1.4.3.0 && < 1.6,
                         hashable,
                         pqueue,
                         reactive-banana,