diff --git a/hledger-ui/hledger-ui.cabal b/hledger-ui/hledger-ui.cabal
index 652f01c55bf..592ec4aace3 100644
--- a/hledger-ui/hledger-ui.cabal
+++ b/hledger-ui/hledger-ui.cabal
@@ -73,7 +73,7 @@ library
       ansi-terminal >=0.9
     , async
     , base >=4.14 && <4.19
-    , brick >=1.5
+    , brick >=1.5 && <2
     , cmdargs >=0.8
     , containers >=0.5.9
     , data-default
@@ -97,7 +97,7 @@ library
     , transformers
     , unix
     , vector
-    , vty >=5.15
+    , vty >=5.15 && <6
   default-language: Haskell2010
   if os(windows)
     buildable: False