diff --git a/lib/modules/manager/batect/index.ts b/lib/modules/manager/batect/index.ts
index b8fd77a5e8aa0d327d8a55803a2ea5162dd749f5..466b348d0c65a5d1d7cd496dd10db6b627605fae 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 183098e281c8b848ef0f5ac41fe3cee35c039bc0..02ef7c70aeab1b414396d69c43326d8b673541b2 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 3d9b97896f1128dd189be9a99c79209cd2999422..b8f4b542cb03913d622d5e0922d0340352433707 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 e769b426948d21c89ed57b401df88f78e0db7c8c..f7ecdd51105538db06ada68b4e8aafb6754837e2 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 0bfa5b49432b732214b00332385cb4d49c6d6a46..3e74df89d6eb8a665dc4bf4453e33829ebc0d9f9 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 e9df003fad80b6053a7bf61e55f90859410827b1..7c4a02772d1021d49416f170bc4bdba4a093fa86 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 10f681049c9ad9e0ca4bb813fc8c7df57832d746..a9ef8d535341d4cdcc0724d0cc55d6c3505a6182 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 fbd8db27c453f5f65644df37cf20fb738d713d2c..0c17191ac59b5ff391c07a26b04bf49b7f22e2f4 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 006145b5c810afc4c9ea520f24bb8f3718a4424d..a84cbb47b44f349b6e2f552da275e8cbd2b69ba1 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 f52495f8a172181d12ec9fa7c17d997bf22e9f70..914529ed56e665fe1b8a291a9fe4a0b2706cf290 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 baa3937b54512516076b9eb946ce0c676aac001b..4bf39140df7e3f4fb70844c3c5d2d3642ef16dd4 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,
   },