diff --git a/pandoc-types.cabal b/pandoc-types.cabal
index 6c7a5e5..e949a56 100644
--- a/pandoc-types.cabal
+++ b/pandoc-types.cabal
@@ -50,7 +50,7 @@ Library
   Build-depends:     base >= 4.5 && < 5,
                      containers >= 0.3,
                      text,
-                     deepseq >= 1.4.1 && < 1.5,
+                     deepseq >= 1.4.1 && < 1.6,
                      syb >= 0.1 && < 0.8,
                      ghc-prim >= 0.2,
                      bytestring >= 0.9 && < 0.13,