diff --git a/.github/workflows/style/check_tabs.sh b/.github/workflows/style/check_tabs.sh
index f4418644e3a..e8bb9f14bc3 100755
--- a/.github/workflows/style/check_tabs.sh
+++ b/.github/workflows/style/check_tabs.sh
@@ -20,7 +20,7 @@ find . -type d \( -name .git \
                     -a ! -name "*.lex.h" -a ! -name "*.lex.nolint.H" \) \
                \) \
     -exec grep -Iq . {} \; \
-    -exec sed -i 's/\t/\ \ \ \ /g' {} +
+    -exec perl -i -pe's/\t/\ \ \ \ /g' {} +
 
 gitdiff=`git diff`
 
diff --git a/.github/workflows/style/check_trailing_whitespaces.sh b/.github/workflows/style/check_trailing_whitespaces.sh
index a0f941f8c2b..a4ece8a0ee4 100755
--- a/.github/workflows/style/check_trailing_whitespaces.sh
+++ b/.github/workflows/style/check_trailing_whitespaces.sh
@@ -20,7 +20,7 @@ find . -type d \( -name .git \
                     -a ! -name "*.lex.h" -a ! -name "*.lex.nolint.H" \) \
                \) \
     -exec grep -Iq . {} \; \
-    -exec sed -i 's/[[:blank:]]\+$//g' {} +
+    -exec perl -i -pe's/[[:blank:]]+$//g' {} +
 
 gitdiff=`git diff`