diff --git a/etc/taskcluster/decisionlib.py b/etc/taskcluster/decisionlib.py
index 08b7b8c4472..32e8d63b464 100644
--- a/etc/taskcluster/decisionlib.py
+++ b/etc/taskcluster/decisionlib.py
@@ -555,10 +555,10 @@ class WindowsGenericWorkerTask(GenericWorkerTask):
 
     def with_curl(self):
         return self \
-        .with_path_from_homedir("curl\\curl-7.69.0-win64-mingw\\bin") \
+        .with_path_from_homedir("curl\\curl-7.73.0-win64-mingw\\bin") \
         .with_directory_mount(
-            "https://curl.haxx.se/windows/dl-7.69.0/curl-7.69.0-win64-mingw.zip",
-            sha256="1c3caf39bf8ad2794b0515a09b3282f85a7ccfcf753ea639f2ef99e50351ade0",
+            "https://curl.haxx.se/windows/dl-7.73.0/curl-7.73.0-win64-mingw.zip",
+            sha256="2e1ffdb6c25c8648a1243bb3a268120be442399b1c93d7da309bba235ecdab9a",
             path="curl",
         )