diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 19246e0..d0c7408 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,3 +1,4 @@
+# yamllint disable rule:line-length
 ---
 name: CI
 
@@ -17,17 +18,17 @@ jobs:
   pre-commit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3.1.0
-      - uses: actions/setup-python@v4.3.0
+      - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # v3.5.0
+      - uses: actions/setup-python@d27e3f3d7c64b4bbf8e4abfb9b63b83e846e0435 # v4.5.0
         with:
           python-version: 3.x
-      - uses: pre-commit/action@v3.0.0
+      - uses: pre-commit/action@646c83fcd040023954eafda54b4db0192ce70507 # v3.0.0
 
   local-test:
     needs: pre-commit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3.1.0
+      - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # v3.5.0
       - name: Test problem matcher
         id: expect-failure
         uses: ./
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 98320b1..b2e5c66 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,3 +1,4 @@
+# yamllint disable rule:line-length
 ---
 name: Release
 
@@ -12,7 +13,7 @@ jobs:
   create-release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3.1.0
-      - uses: softprops/action-gh-release@v1
+      - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # v3.5.0
+      - uses: softprops/action-gh-release@de2c0eb89ae2a093876385947365aca7b0e5f844 # v0.1.15
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/versioning.yml b/.github/workflows/versioning.yml
index 6193afd..2c8550c 100644
--- a/.github/workflows/versioning.yml
+++ b/.github/workflows/versioning.yml
@@ -1,3 +1,4 @@
+# yamllint disable rule:line-length
 ---
 name: Tag Versioning
 
@@ -11,4 +12,4 @@ jobs:
   actions-tagger:
     runs-on: ubuntu-latest
     steps:
-      - uses: Actions-R-Us/actions-tagger@v2.0.2
+      - uses: Actions-R-Us/actions-tagger@330ddfac760021349fef7ff62b372f2f691c20fb # v2.03.
diff --git a/.yamllint b/.yamllint
index 7a96b83..dd5d9f4 100644
--- a/.yamllint
+++ b/.yamllint
@@ -8,6 +8,8 @@ rules:
   brackets:
     min-spaces-inside-empty: 0
     max-spaces-inside-empty: 0
+  comments:
+    min-spaces-from-content: 1 # agree with Prettier
   document-end:
     present: false
   indentation: