diff --git a/.github/workflows/build_apk.yml b/.github/workflows/build_apk.yml
index 6caf335..82b97f7 100644
--- a/.github/workflows/build_apk.yml
+++ b/.github/workflows/build_apk.yml
@@ -121,7 +121,7 @@ jobs:
         uses: subosito/flutter-action@v2
         with:
           channel: "stable"
-          flutter-version: "3.13.9"
+          flutter-version: "3.27.1"
 
       - name: Prepare flutter project
         run: |
diff --git a/.github/workflows/build_ipa.yml b/.github/workflows/build_ipa.yml
index 88294ba..4569520 100644
--- a/.github/workflows/build_ipa.yml
+++ b/.github/workflows/build_ipa.yml
@@ -116,7 +116,7 @@ jobs:
         uses: subosito/flutter-action@v2
         with:
           channel: "stable"
-          flutter-version: "3.13.9"
+          flutter-version: "3.27.1"
 
       - name: Prepare flutter project
         run: |
diff --git a/.github/workflows/pr_check.yml b/.github/workflows/pr_check.yml
index 1aac0a8..2682f66 100644
--- a/.github/workflows/pr_check.yml
+++ b/.github/workflows/pr_check.yml
@@ -42,7 +42,7 @@ jobs:
       - uses: subosito/flutter-action@v2
         with:
           channel: "stable"
-          flutter-version: "3.13.9"
+          flutter-version: "3.27.1"
 
       - name: Prepare flutter project
         run: |
diff --git a/.github/workflows/run_integration_tests.yml b/.github/workflows/run_integration_tests.yml
index b49c3f8..d9adbde 100644
--- a/.github/workflows/run_integration_tests.yml
+++ b/.github/workflows/run_integration_tests.yml
@@ -31,7 +31,7 @@ jobs:
       - uses: subosito/flutter-action@v2
         with:
           channel: "stable"
-          flutter-version: "3.13.9"
+          flutter-version: "3.27.1"
 
       - name: Prepare app
         run: |
diff --git a/README.md b/README.md
index 3114a99..c91d08b 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ Without further delay behold my new Lightmeter app inspired by Material You (a.k
 
 ### 1. Install Flutter
 
-To build this app you need to install Flutter 3.13.9 stable. [How to install](https://docs.flutter.dev/get-started/install).
+To build this app you need to install Flutter 3.27.1 stable. [How to install](https://docs.flutter.dev/get-started/install).
 
 ### 2. Project setup