diff --git a/poem-grants/Cargo.toml b/poem-grants/Cargo.toml
index 1175314..cbe6b80 100644
--- a/poem-grants/Cargo.toml
+++ b/poem-grants/Cargo.toml
@@ -26,6 +26,6 @@ thiserror = "1"
 
 [dev-dependencies]
 poem = {version = "1", features = ["test"]}
-poem-openapi = "2.0.26"
+poem-openapi = "3.0.6"
 serde = {version = "1.0", features = ["derive"]}
 tokio = {version = "1.34.0", features = ["rt-multi-thread"]}