diff --git a/requirements.in b/requirements.in
index 22729a2..d12cc36 100644
--- a/requirements.in
+++ b/requirements.in
@@ -6,3 +6,5 @@ garth>=0.4.47
 fitfile>=1.1.8
 tcxfile>=1.0.4
 idbutils>=1.1.0
+# security fixes
+tornado>=6.4.2
diff --git a/requirements.txt b/requirements.txt
index 25522c1..c97fe7f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,3 +6,5 @@ garth==0.4.47
 fitfile>=1.1.8
 tcxfile>=1.0.4
 idbutils>=1.1.0
+# security fixes
+tornado>=6.4.2
\ No newline at end of file