diff --git a/build.sbt b/build.sbt
index 06ea35b923..1305b75bdf 100644
--- a/build.sbt
+++ b/build.sbt
@@ -711,7 +711,7 @@ lazy val httpCodeGen =
       packExcludeLibJars := Seq("airspec_2.12", "airspec_2.13", "airspec_3"),
       libraryDependencies ++= Seq(
         // Use swagger-parser only for validating YAML format in tests
-        "io.swagger.parser.v3" % "swagger-parser" % "2.1.16" % Test,
+        "io.swagger.parser.v3" % "swagger-parser" % "2.1.18" % Test,
         // Swagger includes dependency to SLF4J, so redirect slf4j logs to airframe-log
         "org.slf4j" % "slf4j-jdk14" % SLF4J_VERSION % Test,
         // For gRPC route scanner test