diff --git a/quiche/Cargo.toml b/quiche/Cargo.toml
index 0b0c0886a..aba0eea8a 100644
--- a/quiche/Cargo.toml
+++ b/quiche/Cargo.toml
@@ -62,7 +62,7 @@ ring = "0.16"
 slab = "0.4"
 once_cell = "1"
 octets = { version = "0.2", path = "../octets" }
-boring = { version = "3", optional = true }
+boring = { version = "4", optional = true }
 foreign-types-shared = { version = "0.3.0", optional = true }
 intrusive-collections = "0.9.5"
 qlog = { version = "0.9", path = "../qlog", optional = true }