diff --git a/lib/modules/manager/batect/index.ts b/lib/modules/manager/batect/index.ts
index b8fd77a5e8aa0d..466b348d0c65a5 100644
--- a/lib/modules/manager/batect/index.ts
+++ b/lib/modules/manager/batect/index.ts
@@ -4,7 +4,7 @@ import { extractAllPackageFiles, extractPackageFile } from './extract';
 export { extractAllPackageFiles, extractPackageFile };
 
 export const defaultConfig = {
-  fileMatch: ['(^|/)batect(-bundle)?\\.yml$'],
+  fileMatch: ['(^|/)batect(-bundle)?\\.ya?ml$'],
 };
 
 export const supportedDatasources = [GitTagsDatasource.id];
diff --git a/lib/modules/manager/circleci/index.ts b/lib/modules/manager/circleci/index.ts
index 183098e281c8b8..02ef7c70aeab1b 100644
--- a/lib/modules/manager/circleci/index.ts
+++ b/lib/modules/manager/circleci/index.ts
@@ -9,7 +9,7 @@ export const displayName = 'CircleCI';
 export const url = 'https://circleci.com/docs/configuration-reference';
 
 export const defaultConfig = {
-  fileMatch: ['(^|/)\\.circleci/config\\.yml$'],
+  fileMatch: ['(^|/)\\.circleci/config\\.ya?ml$'],
 };
 
 export const supportedDatasources = [DockerDatasource.id, OrbDatasource.id];
diff --git a/lib/modules/manager/flux/common.ts b/lib/modules/manager/flux/common.ts
index 3d9b97896f1128..b8f4b542cb0391 100644
--- a/lib/modules/manager/flux/common.ts
+++ b/lib/modules/manager/flux/common.ts
@@ -1,7 +1,7 @@
 import { regEx } from '../../../util/regex';
 
 export const systemManifestRegex =
-  '(^|/)flux-system/(?:.+/)?gotk-components\\.yaml$';
+  '(^|/)flux-system/(?:.+/)?gotk-components\\.ya?ml$';
 
 export function isSystemManifest(file: string): boolean {
   return regEx(systemManifestRegex).test(file);
diff --git a/lib/modules/manager/gitlabci-include/index.ts b/lib/modules/manager/gitlabci-include/index.ts
index e769b426948d21..f7ecdd51105538 100644
--- a/lib/modules/manager/gitlabci-include/index.ts
+++ b/lib/modules/manager/gitlabci-include/index.ts
@@ -4,7 +4,7 @@ import { extractPackageFile } from './extract';
 export { extractPackageFile };
 
 export const defaultConfig = {
-  fileMatch: ['\\.gitlab-ci\\.yml$'],
+  fileMatch: ['\\.gitlab-ci\\.ya?ml$'],
 };
 
 export const supportedDatasources = [GitlabTagsDatasource.id];
diff --git a/lib/modules/manager/gitlabci/index.ts b/lib/modules/manager/gitlabci/index.ts
index 0bfa5b49432b73..3e74df89d6eb8a 100644
--- a/lib/modules/manager/gitlabci/index.ts
+++ b/lib/modules/manager/gitlabci/index.ts
@@ -7,7 +7,7 @@ export const language: ProgrammingLanguage = 'docker';
 export { extractAllPackageFiles, extractPackageFile };
 
 export const defaultConfig = {
-  fileMatch: ['\\.gitlab-ci\\.yml$'],
+  fileMatch: ['\\.gitlab-ci\\.ya?ml$'],
 };
 
 export const supportedDatasources = [DockerDatasource.id];
diff --git a/lib/modules/manager/helm-requirements/index.ts b/lib/modules/manager/helm-requirements/index.ts
index e9df003fad80b6..7c4a02772d1021 100644
--- a/lib/modules/manager/helm-requirements/index.ts
+++ b/lib/modules/manager/helm-requirements/index.ts
@@ -6,7 +6,7 @@ export const defaultConfig = {
     stable: 'https://charts.helm.sh/stable',
   },
   commitMessageTopic: 'helm chart {{depName}}',
-  fileMatch: ['(^|/)requirements\\.yaml$'],
+  fileMatch: ['(^|/)requirements\\.ya?ml$'],
 };
 
 export const supportedDatasources = [HelmDatasource.id];
diff --git a/lib/modules/manager/helm-values/index.ts b/lib/modules/manager/helm-values/index.ts
index 10f681049c9ad9..a9ef8d535341d4 100644
--- a/lib/modules/manager/helm-values/index.ts
+++ b/lib/modules/manager/helm-values/index.ts
@@ -3,7 +3,7 @@ export { extractPackageFile } from './extract';
 
 export const defaultConfig = {
   commitMessageTopic: 'helm values {{depName}}',
-  fileMatch: ['(^|/)values\\.yaml$'],
+  fileMatch: ['(^|/)values\\.ya?ml$'],
   pinDigests: false,
 };
 
diff --git a/lib/modules/manager/helmfile/index.ts b/lib/modules/manager/helmfile/index.ts
index fbd8db27c453f5..0c17191ac59b5f 100644
--- a/lib/modules/manager/helmfile/index.ts
+++ b/lib/modules/manager/helmfile/index.ts
@@ -10,7 +10,7 @@ export const defaultConfig = {
     stable: 'https://charts.helm.sh/stable',
   },
   commitMessageTopic: 'helm chart {{depName}}',
-  fileMatch: ['(^|/)helmfile\\.yaml$'],
+  fileMatch: ['(^|/)helmfile\\.ya?ml$'],
 };
 
 export const supportedDatasources = [HelmDatasource.id, DockerDatasource.id];
diff --git a/lib/modules/manager/helmv3/index.ts b/lib/modules/manager/helmv3/index.ts
index 006145b5c810af..a84cbb47b44f34 100644
--- a/lib/modules/manager/helmv3/index.ts
+++ b/lib/modules/manager/helmv3/index.ts
@@ -11,7 +11,7 @@ export const defaultConfig = {
     stable: 'https://charts.helm.sh/stable',
   },
   commitMessageTopic: 'helm chart {{depName}}',
-  fileMatch: ['(^|/)Chart\\.yaml$'],
+  fileMatch: ['(^|/)Chart\\.ya?ml$'],
 };
 
 export const supportedDatasources = [DockerDatasource.id, HelmDatasource.id];
diff --git a/lib/modules/manager/pre-commit/index.ts b/lib/modules/manager/pre-commit/index.ts
index f52495f8a17218..914529ed56e665 100644
--- a/lib/modules/manager/pre-commit/index.ts
+++ b/lib/modules/manager/pre-commit/index.ts
@@ -10,7 +10,7 @@ export const supportedDatasources = [
 export const defaultConfig = {
   commitMessageTopic: 'pre-commit hook {{depName}}',
   enabled: false,
-  fileMatch: ['(^|/)\\.pre-commit-config\\.yaml$'],
+  fileMatch: ['(^|/)\\.pre-commit-config\\.ya?ml$'],
   prBodyNotes: [
     'Note: The `pre-commit` manager in Renovate is not supported by the `pre-commit` maintainers or community. Please do not report any problems there, instead [create a Discussion in the Renovate repository](https://github.com/renovatebot/renovate/discussions/new) if you have any questions.',
   ],
diff --git a/lib/modules/manager/travis/index.ts b/lib/modules/manager/travis/index.ts
index baa3937b545125..4bf39140df7e3f 100644
--- a/lib/modules/manager/travis/index.ts
+++ b/lib/modules/manager/travis/index.ts
@@ -9,7 +9,7 @@ export const language: ProgrammingLanguage = 'node';
 export const supportedDatasources = [GithubTagsDatasource.id];
 
 export const defaultConfig = {
-  fileMatch: ['^\\.travis\\.yml$'],
+  fileMatch: ['^\\.travis\\.ya?ml$'],
   major: {
     enabled: false,
   },