Last pass over fixing the links (#3224)
diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 4f0ece5..3429d52 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -427,7 +427,7 @@
# Verified against the CommonCrypto and Go crypto packages
# Key Length : 128
-.. _`NIST`: http://www.nist.gov/
+.. _`NIST`: https://www.nist.gov/
.. _`IETF`: https://www.ietf.org/
.. _`NIST CAVP`: http://csrc.nist.gov/groups/STM/cavp/
.. _`Bruce Schneier's vectors`: https://www.schneier.com/code/vectors.txt