1 files changed, 1 insertions, 0 deletions

diff --git a/server/thermoprint-server.cabal b/server/thermoprint-server.cabal
index 8862255..926118d 100644
--- a/server/thermoprint-server.cabal
+++ b/server/thermoprint-server.cabal
@@ -40,6 +40,7 @@ library
                      , either >=4.4.1 && <5
                      , text >=1.2.1 && <2
                      , stm >=2.4.4 && <3
+                     , deepseq >=1.4.1 && <2
   hs-source-dirs:      src
   default-language:    Haskell2010