diff --git a/requirements.txt b/requirements.txt
index 2bb1e81fbc..6330a0996e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ tornado==6.3.2
 tzlocal==5.0.1    # from time
 tzdata>=2021.1  # from time
 pyserial==3.5
-platformio==6.1.7  # When updating platformio, also update Dockerfile
+platformio==6.1.9  # When updating platformio, also update Dockerfile
 esptool==4.6.2
 click==8.1.6
 esphome-dashboard==20230711.0
diff --git a/script/clang-tidy b/script/clang-tidy
index d8dd033d29..b025221fa8 100755
--- a/script/clang-tidy
+++ b/script/clang-tidy
@@ -72,7 +72,7 @@ def clang_options(idedata):
     # copy compiler flags, except those clang doesn't understand.
     cmd.extend(
         flag
-        for flag in idedata["cxx_flags"].split(" ")
+        for flag in idedata["cxx_flags"]
         if flag
         not in (
             "-free",