diff --git a/Project.toml b/Project.toml
index bfc76dcb..08744e74 100644
--- a/Project.toml
+++ b/Project.toml
@@ -26,7 +26,7 @@ CUDA = "3"
 Flux = "0.13"
 Functors = "0.2"
 IterTools = "1"
-MemPool = "0.3"
+MemPool = "0.3, 0.4"
 NaiveNASflux = "2"
 NaiveNASlib = "2"
 Reexport = "0.2.0, 1"