diff --git a/monitoring/distributed-tracing/go.mod b/monitoring/distributed-tracing/go.mod
index c3758c797b..7b0c8daedf 100644
--- a/monitoring/distributed-tracing/go.mod
+++ b/monitoring/distributed-tracing/go.mod
@@ -4,7 +4,7 @@ go 1.21
 
 require (
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/trace v1.20.0
-	github.com/gorilla/mux v1.8.0
+	github.com/gorilla/mux v1.8.1
 	go.opentelemetry.io/contrib/detectors/gcp v1.20.0
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.45.0
 	go.opentelemetry.io/contrib/propagators/autoprop v0.45.0
diff --git a/monitoring/distributed-tracing/go.sum b/monitoring/distributed-tracing/go.sum
index 2c3630ea53..17b527650b 100644
--- a/monitoring/distributed-tracing/go.sum
+++ b/monitoring/distributed-tracing/go.sum
@@ -88,6 +88,8 @@ github.com/googleapis/gax-go/v2 v2.11.0 h1:9V9PWXEsWnPpQhu/PeQIkS4eGzMlTLGgt80cU
 github.com/googleapis/gax-go/v2 v2.11.0/go.mod h1:DxmR61SGKkGLa2xigwuZIQpkCI2S5iydzRfb3peWZJI=
 github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
 github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
+github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
+github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
diff --git a/observability/distributed-tracing/go.mod b/observability/distributed-tracing/go.mod
index c3758c797b..7b0c8daedf 100644
--- a/observability/distributed-tracing/go.mod
+++ b/observability/distributed-tracing/go.mod
@@ -4,7 +4,7 @@ go 1.21
 
 require (
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/trace v1.20.0
-	github.com/gorilla/mux v1.8.0
+	github.com/gorilla/mux v1.8.1
 	go.opentelemetry.io/contrib/detectors/gcp v1.20.0
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.45.0
 	go.opentelemetry.io/contrib/propagators/autoprop v0.45.0
diff --git a/observability/distributed-tracing/go.sum b/observability/distributed-tracing/go.sum
index 2c3630ea53..17b527650b 100644
--- a/observability/distributed-tracing/go.sum
+++ b/observability/distributed-tracing/go.sum
@@ -88,6 +88,8 @@ github.com/googleapis/gax-go/v2 v2.11.0 h1:9V9PWXEsWnPpQhu/PeQIkS4eGzMlTLGgt80cU
 github.com/googleapis/gax-go/v2 v2.11.0/go.mod h1:DxmR61SGKkGLa2xigwuZIQpkCI2S5iydzRfb3peWZJI=
 github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
 github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
+github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
+github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=