diff --git a/.github/workflows/benchmark-cli.yml b/.github/workflows/benchmark-cli.yml
index 06dae25..e180971 100644
--- a/.github/workflows/benchmark-cli.yml
+++ b/.github/workflows/benchmark-cli.yml
@@ -63,7 +63,7 @@ jobs:
             const path = require('path')
 
             const { PR_ID, REPO, OWNER } = process.env
-            const COMMENT = fs.readFileSync(path.join('results/temp', 'report.md'))
+            const COMMENT = fs.readFileSync(path.join('results/temp', 'report.md'), 'utf-8')
 
             const updateComment = await github.paginate(github.rest.issues.listComments, {
               owner: OWNER,
diff --git a/scripts/template-oss/benchmark-cli-yml.hbs b/scripts/template-oss/benchmark-cli-yml.hbs
index 56b8ec1..7853700 100644
--- a/scripts/template-oss/benchmark-cli-yml.hbs
+++ b/scripts/template-oss/benchmark-cli-yml.hbs
@@ -32,7 +32,7 @@ jobs:
             const path = require('path')
 
             const { PR_ID, REPO, OWNER } = process.env
-            const COMMENT = fs.readFileSync(path.join('{{ resultsDir }}', 'report.md'))
+            const COMMENT = fs.readFileSync(path.join('{{ resultsDir }}', 'report.md'), 'utf-8')
 
             const updateComment = await github.paginate(github.rest.issues.listComments, {
               owner: OWNER,