diff --git a/documentation/spectral_analysis/basic_aras/requirements.txt b/documentation/spectral_analysis/basic_aras/requirements.txt
index 4c703644..342b5f1e 100644
--- a/documentation/spectral_analysis/basic_aras/requirements.txt
+++ b/documentation/spectral_analysis/basic_aras/requirements.txt
@@ -53,7 +53,7 @@ soupsieve==1.9.2
 terminado==0.8.2
 testpath==0.4.2
 toml==0.10.0
-tornado==6.3.3
+tornado==6.4.2
 traitlets==4.3.2
 wcwidth==0.1.7
 webencodings==0.5.1