diff --git a/docs/hazmat/primitives/asymmetric/dsa.rst b/docs/hazmat/primitives/asymmetric/dsa.rst
index 92342b8..4eb17e3 100644
--- a/docs/hazmat/primitives/asymmetric/dsa.rst
+++ b/docs/hazmat/primitives/asymmetric/dsa.rst
@@ -264,7 +264,7 @@
 
         Sign data which can be verified later by others using the public key.
         The signature is formatted as DER-encoded bytes, as specified in
-        :rfc:`6979`.
+        :rfc:`3279`.
 
         :param algorithm: An instance of a
             :class:`~cryptography.hazmat.primitives.hashes.HashAlgorithm`
@@ -354,7 +354,7 @@
         key.
 
         :param bytes signature: The signature to verify. DER encoded as
-            specified in :rfc:`6979`.
+            specified in :rfc:`3279`.
 
         :param algorithm: An instance of a
             :class:`~cryptography.hazmat.primitives.hashes.HashAlgorithm`
diff --git a/docs/hazmat/primitives/asymmetric/ec.rst b/docs/hazmat/primitives/asymmetric/ec.rst
index c0026c6..323f4c3 100644
--- a/docs/hazmat/primitives/asymmetric/ec.rst
+++ b/docs/hazmat/primitives/asymmetric/ec.rst
@@ -306,7 +306,7 @@
 
         Sign data which can be verified later by others using the public key.
         The signature is formatted as DER-encoded bytes, as specified in
-        :rfc:`6979`.
+        :rfc:`3279`.
 
         :param signature_algorithm: An instance of a
             :class:`EllipticCurveSignatureAlgorithm` provider.
@@ -372,7 +372,7 @@
         key.
 
         :param bytes signature: The signature to verify. DER encoded as
-            specified in :rfc:`6979`.
+            specified in :rfc:`3279`.
 
         :param signature_algorithm: An instance of a
             :class:`EllipticCurveSignatureAlgorithm` provider.