diff --git a/Cargo.lock b/Cargo.lock
index f2f9bcb..555579f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2375,9 +2375,9 @@ dependencies = [
 
 [[package]]
 name = "ldap3_proto"
-version = "0.4.3"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a29eca0a9fef365d6d376a1b262e269a17b1c8c6de2cee76618642cd3c923506"
+checksum = "86e00102210e670682f609534b688570ad69820c50608e88a33c17d57356d77a"
 dependencies = [
  "base64 0.21.0",
  "bytes",
diff --git a/server/Cargo.toml b/server/Cargo.toml
index 3bb842d..6a4c98b 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -35,7 +35,7 @@ itertools = "0.10"
 juniper = "0.15"
 jwt = "0.16"
 lber = "0.4.1"
-ldap3_proto = "^0.4.3"
+ldap3_proto = "^0.5.1"
 log = "*"
 orion = "0.17"
 rand_chacha = "0.3"
diff --git a/server/src/infra/ldap_server.rs b/server/src/infra/ldap_server.rs
index 6cefcc8..1b2305c 100644
--- a/server/src/infra/ldap_server.rs
+++ b/server/src/infra/ldap_server.rs
@@ -33,6 +33,11 @@ where
 {
     use futures_util::SinkExt;
     let msg = msg.context("while receiving LDAP op")?;
+    for control in msg.ctrl.iter() {
+        if let LdapControl::Unknown { oid, .. } = control {
+            info!("Received unknown control: {}, ignoring", oid);
+        }
+    }
     debug!(?msg);
     match session.handle_ldap_message(msg.op).await {
         None => return Ok(false),