Update URL to EFF (#4672)
diff --git a/docs/hazmat/primitives/symmetric-encryption.rst b/docs/hazmat/primitives/symmetric-encryption.rst
index 4924ddd..21d12a3 100644
--- a/docs/hazmat/primitives/symmetric-encryption.rst
+++ b/docs/hazmat/primitives/symmetric-encryption.rst
@@ -826,7 +826,7 @@
.. _`recommends a 96-bit IV length`: https://csrc.nist.gov/publications/detail/sp/800-38d/final
.. _`NIST SP-800-38D`: https://csrc.nist.gov/publications/detail/sp/800-38d/final
.. _`Communications Security Establishment`: https://www.cse-cst.gc.ca
-.. _`encrypt`: https://ssd.eff.org/en/module/what-encryption
+.. _`encrypt`: https://ssd.eff.org/en/module/what-should-i-know-about-encryption
.. _`CRYPTREC`: https://www.cryptrec.go.jp/english/
.. _`significant patterns in the output`: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Electronic_Codebook_.28ECB.29
.. _`International Data Encryption Algorithm`: https://en.wikipedia.org/wiki/International_Data_Encryption_Algorithm