diff --git a/README.md b/README.md
index ef1309c..a12fb8e 100644
--- a/README.md
+++ b/README.md
@@ -141,6 +141,17 @@ Known Issues
 - Possible memory leak for each connection
   Error message is: Task exception was never retrieved
   See the commented out assertion at the end of test_clientkeymismatch
+- cryptography may install broken.  If you get the error message:
+```
+RuntimeError: OpenSSL 3.0's legacy provider failed to load. This is a fatal error by default, but cryptography supports running without legacy algorithms by setting the environment variable CRYPTOGRAPHY_OPENSSL_NO_LEGACY. If you did not expect this error, you have likely made a mistake with your OpenSSL configuration.
+```
+  Run the following:
+```
+pip uninstall cryptography
+export CRYPTOGRAPHY_OPENSSL_NO_LEGACY=1
+pip install cryptography
+```
+and try again.
 
 TODO/Future Features
 --------------------