diff --git a/packages/core/Cargo.toml b/packages/core/Cargo.toml
index 03b378e88..4126eb47f 100644
--- a/packages/core/Cargo.toml
+++ b/packages/core/Cargo.toml
@@ -32,7 +32,7 @@ smallvec = "1.6"
 
 slab = "0.4"
 
-futures-channel = "0.3"
+futures-channel = "0.3.21"
 
 # used for noderefs
 once_cell = "1.8"