diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 7918b15..1a1c5d7 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -378,6 +378,11 @@
   incremented by 1 to produce an invalid signature, and the public key which
   was used to generate it.
 
+Custom X.509 OCSP Test Vectors
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+* ``x509/ocsp/req-sha1.der`` - An OCSP request containing a single request and
+  using SHA1 as the hash algorithm.
+
 Hashes
 ~~~~~~
 
diff --git a/vectors/cryptography_vectors/x509/ocsp/req-sha1.der b/vectors/cryptography_vectors/x509/ocsp/req-sha1.der
new file mode 100644
index 0000000..3327ae8
--- /dev/null
+++ b/vectors/cryptography_vectors/x509/ocsp/req-sha1.der
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