diff --git a/channels/fast-4.2.yaml b/channels/fast-4.2.yaml
index 221fd520b..1d9a4cbac 100644
--- a/channels/fast-4.2.yaml
+++ b/channels/fast-4.2.yaml
@@ -38,3 +38,4 @@ versions:
 - 4.2.16
 # not 4.2.17 because we had a long quiet time after 4.2.16 with no releases
 - 4.2.18
+- 4.2.20
diff --git a/channels/fast-4.3.yaml b/channels/fast-4.3.yaml
index 6c5eb389a..4d8f7d649 100644
--- a/channels/fast-4.3.yaml
+++ b/channels/fast-4.3.yaml
@@ -4,5 +4,6 @@ versions:
 - 4.2.16+amd64
 # not 4.2.17 because we had a long quiet time after 4.2.16 with no releases
 - 4.2.18+amd64
+- 4.2.20+amd64
 - 4.3.0
 - 4.3.1