diff --git a/CHANGELOG.md b/CHANGELOG.md
index f9f47643f..09da5ad6f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -796,7 +796,7 @@
 - Allow workflow calls are available in matrix jobs. See [the official announcement](https://github.blog/changelog/2022-08-22-github-actions-improvements-to-reusable-workflows-2/) for more details. ([#197](https://github.com/rhysd/actionlint/issues/197))
   ```yaml
   jobs:
-    ReuseableMatrixJobForDeployment:
+    ReusableMatrixJobForDeployment:
       strategy:
         matrix:
           target: [dev, stage, prod]
@@ -929,7 +929,7 @@
   ```
 - Fix usage of local actions (`uses: ./path/to/action`) was not checked when multiple workflow files were passed to `actionlint` command. ([#173](https://github.com/rhysd/actionlint/issues/173))
 - Allow `description:` is missing in `secrets:` of reusable workflow call definition since it is optional. ([#174](https://github.com/rhysd/actionlint/issues/174))
-- Fix type of propery of `github.event.inputs` is string unlike `inputs` context. See [the document](https://github.com/rhysd/actionlint/blob/main/docs/checks.md#workflow-dispatch-event-validation) for more details. ([#181](https://github.com/rhysd/actionlint/issues/181))
+- Fix type of property of `github.event.inputs` is string unlike `inputs` context. See [the document](https://github.com/rhysd/actionlint/blob/main/docs/checks.md#workflow-dispatch-event-validation) for more details. ([#181](https://github.com/rhysd/actionlint/issues/181))
   ```yaml
   on:
     workflow_dispatch:
diff --git a/expr_sema_test.go b/expr_sema_test.go
index 193684dab..65a38ac0e 100644
--- a/expr_sema_test.go
+++ b/expr_sema_test.go
@@ -1742,7 +1742,7 @@ func TestParseFormatSpecifiers(t *testing.T) {
 			want: []int{0},
 		},
 		{
-			what: "mutliple specifiers",
+			what: "multiple specifiers",
 			in:   "{0} {1}{2}x{3}}{4}!",
 			want: []int{0, 1, 2, 3, 4},
 		},
diff --git a/testdata/projects/paths_config/workflows/foo.yaml b/testdata/projects/paths_config/workflows/foo.yaml
index dc67b3532..ce26aa56a 100644
--- a/testdata/projects/paths_config/workflows/foo.yaml
+++ b/testdata/projects/paths_config/workflows/foo.yaml
@@ -7,7 +7,7 @@ env:
 
 jobs:
   test:
-    # This erro will be reported
+    # This error will be reported
     runs-on: unknown
     steps:
       - run: echo
diff --git a/testdata/projects/paths_config/workflows/nested/piyo.yaml b/testdata/projects/paths_config/workflows/nested/piyo.yaml
index 87b473d85..3edc4b929 100644
--- a/testdata/projects/paths_config/workflows/nested/piyo.yaml
+++ b/testdata/projects/paths_config/workflows/nested/piyo.yaml
@@ -1,13 +1,13 @@
 # This error will be ignored by workflows/**/*.yaml config
 on: unknown
 
-# This erro will be reported
+# This error will be reported
 env:
   FOO: ${{ env.FOO }}
 
 jobs:
   test:
-    # This erro will be reported
+    # This error will be reported
     runs-on: unknown
     steps:
       - run: echo