diff --git a/Cargo.lock b/Cargo.lock
index 980ef4dc89..365b6254ca 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2949,8 +2949,8 @@ checksum = "61807f77802ff30975e01f4f071c8ba10c022052f98b3294119f3e615d13e5be"
 
 [[package]]
 name = "nr-auth"
-version = "0.2.0"
-source = "git+https://github.com/newrelic/newrelic-auth-rs.git?tag=0.2.0#ba56af17de237a6e80138f52ff3d9ce73262fd06"
+version = "0.4.0"
+source = "git+https://github.com/newrelic/newrelic-auth-rs.git?tag=0.4.0#2d936f25f6950dbec6de2ab39d3b1654711862af"
 dependencies = [
  "base64 0.22.1",
  "chrono",
diff --git a/agent-control/Cargo.toml b/agent-control/Cargo.toml
index 916fc108be..02b4efca23 100644
--- a/agent-control/Cargo.toml
+++ b/agent-control/Cargo.toml
@@ -32,7 +32,7 @@ semver = { workspace = true, features = ["serde"] }
 chrono = { workspace = true }
 base64 = { version = "0.22.1" }
 # New Relic dependencies (external repos)
-nr-auth = { git = "https://github.com/newrelic/newrelic-auth-rs.git", tag = "0.2.0" }
+nr-auth = { git = "https://github.com/newrelic/newrelic-auth-rs.git", tag = "0.4.0" }
 opamp-client = { git = "https://github.com/newrelic/newrelic-opamp-rs.git", tag = "0.0.36" }
 # local dependencies
 fs = { path = "../fs" }