diff --git a/requirements.in b/requirements.in
index e9181c89..43674791 100644
--- a/requirements.in
+++ b/requirements.in
@@ -403,7 +403,7 @@ toolz==1.1.0
     #   dask
     #   distributed
     #   partd
-tornado==6.5.4
+tornado==6.5.5
     # via distributed
 tox==4.47.1
     # via mozilla-jetstream
diff --git a/requirements.txt b/requirements.txt
index 108c434c..13940a05 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2477,19 +2477,27 @@ toolz==1.1.0 \
     #   dask
     #   distributed
     #   partd
-tornado==6.5.4 \
-    --hash=sha256:053e6e16701eb6cbe641f308f4c1a9541f91b6261991160391bfc342e8a551a1 \
-    --hash=sha256:1768110f2411d5cd281bac0a090f707223ce77fd110424361092859e089b38d1 \
-    --hash=sha256:2d50f63dda1d2cac3ae1fa23d254e16b5e38153758470e9956cbc3d813d40843 \
-    --hash=sha256:50ff0a58b0dc97939d29da29cd624da010e7f804746621c78d14b80238669335 \
-    --hash=sha256:6076d5dda368c9328ff41ab5d9dd3608e695e8225d1cd0fd1e006f05da3635a8 \
-    --hash=sha256:6eb82872335a53dd063a4f10917b3efd28270b56a33db69009606a0312660a6f \
-    --hash=sha256:9c86b1643b33a4cd415f8d0fe53045f913bf07b4a3ef646b735a6a86047dda84 \
-    --hash=sha256:a22fa9047405d03260b483980635f0b041989d8bcc9a313f8fe18b411d84b1d7 \
-    --hash=sha256:d1cf66105dc6acb5af613c054955b8137e34a03698aa53272dbda4afe252be17 \
-    --hash=sha256:d6241c1a16b1c9e4cc28148b1cda97dd1c6cb4fb7068ac1bedc610768dff0ba9 \
-    --hash=sha256:e5fb5e04efa54cf0baabdd10061eb4148e0be137166146fff835745f59ab9f7f \
-    --hash=sha256:fa07d31e0cd85c60713f2b995da613588aa03e1303d75705dca6af8babc18ddc
+tornado==6.5.5 \
+    --hash=sha256:192b8f3ea91bd7f1f50c06955416ed76c6b72f96779b962f07f911b91e8d30e9 \
+    --hash=sha256:192b8f3ea91bd7f1f50c06955416ed76c6b72f96779b962f07f911b91e8d30e9 \
+    --hash=sha256:2c9a876e094109333f888539ddb2de4361743e5d21eece20688e3e351e4990a6 \
+    --hash=sha256:2c9a876e094109333f888539ddb2de4361743e5d21eece20688e3e351e4990a6 \
+    --hash=sha256:36abed1754faeb80fbd6e64db2758091e1320f6bba74a4cf8c09cd18ccce8aca \
+    --hash=sha256:36abed1754faeb80fbd6e64db2758091e1320f6bba74a4cf8c09cd18ccce8aca \
+    --hash=sha256:3f54aa540bdbfee7b9eb268ead60e7d199de5021facd276819c193c0fb28ea4e \
+    --hash=sha256:3f54aa540bdbfee7b9eb268ead60e7d199de5021facd276819c193c0fb28ea4e \
+    --hash=sha256:435319e9e340276428bbdb4e7fa732c2d399386d1de5686cb331ec8eee754f07 \
+    --hash=sha256:435319e9e340276428bbdb4e7fa732c2d399386d1de5686cb331ec8eee754f07 \
+    --hash=sha256:487dc9cc380e29f58c7ab88f9e27cdeef04b2140862e5076a66fb6bb68bb1bfa \
+    --hash=sha256:487dc9cc380e29f58c7ab88f9e27cdeef04b2140862e5076a66fb6bb68bb1bfa \
+    --hash=sha256:6443a794ba961a9f619b1ae926a2e900ac20c34483eea67be4ed8f1e58d3ef7b \
+    --hash=sha256:6443a794ba961a9f619b1ae926a2e900ac20c34483eea67be4ed8f1e58d3ef7b \
+    --hash=sha256:65a7f1d46d4bb41df1ac99f5fcb685fb25c7e61613742d5108b010975a9a6521 \
+    --hash=sha256:65a7f1d46d4bb41df1ac99f5fcb685fb25c7e61613742d5108b010975a9a6521 \
+    --hash=sha256:dd3eafaaeec1c7f2f8fdcd5f964e8907ad788fe8a5a32c4426fbbdda621223b7 \
+    --hash=sha256:dd3eafaaeec1c7f2f8fdcd5f964e8907ad788fe8a5a32c4426fbbdda621223b7 \
+    --hash=sha256:e74c92e8e65086b338fd56333fb9a68b9f6f2fe7ad532645a290a464bcf46be5 \
+    --hash=sha256:e74c92e8e65086b338fd56333fb9a68b9f6f2fe7ad532645a290a464bcf46be5
     # via
     #   -r requirements.in
     #   distributed