diff --git a/differential-dataflow/Cargo.toml b/differential-dataflow/Cargo.toml
index 42ab57d51..2cd7b586f 100644
--- a/differential-dataflow/Cargo.toml
+++ b/differential-dataflow/Cargo.toml
@@ -23,7 +23,7 @@ graph_map = "0.1"
 bytemuck = "1.18.0"
 
 [dependencies]
-columnar = "0.5"
+columnar = "0.6"
 columnation = "0.1.0"
 fnv="1.0.2"
 paste = "1.0"