diff --git a/releasenotes/notes/yamllint-c07fd31780ec8d10.yaml b/releasenotes/notes/yamllint-c07fd31780ec8d10.yaml
new file mode 100644
index 000000000..6033750ba
--- /dev/null
+++ b/releasenotes/notes/yamllint-c07fd31780ec8d10.yaml
@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    A dependency on ``yamllint`` was added because it is now
+    required by dib-lint.
diff --git a/requirements.txt b/requirements.txt
index f4db11840..b8e8eafa0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,5 +8,6 @@ pbr!=2.1.0,>=2.0.0 # Apache-2.0
 PyYAML>=3.12 # MIT
 six>=1.10.0 # MIT
 stevedore>=1.20.0 # Apache-2.0
-# NOTE(ianw) in here because dib-lint uses flake8
+# NOTE(ianw) in here because dib-lint uses flake8 and yamllint
 flake8<4.0.0,>=3.6.0 # MIT
+yamllint>=1.23.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 31ac5c985..560a57ad5 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -12,5 +12,3 @@ testrepository>=0.0.18 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT
 
 coverage!=4.4,>=4.0 # Apache-2.0
-
-yamllint>=1.23.0