diff --git a/android/gradle.properties b/android/gradle.properties
index 357cef39a7f1619a4f0ba1c191a85a0dd10b7266..f0fcf6cdd8fc72bc76b35e7be0dc622b20c03b0f 100644
--- a/android/gradle.properties
+++ b/android/gradle.properties
@@ -1,5 +1,5 @@
 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
-app.versionName=0.0.25
-app.versionCode=25
+app.versionName=0.0.26
+app.versionCode=26
diff --git a/fastlane/metadata/android/en-US/changelogs/26.txt b/fastlane/metadata/android/en-US/changelogs/26.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ab8a8e6ff933a83232e454b222e555b7a2bce710
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/26.txt
@@ -0,0 +1 @@
+Fix forbid change value of fixed initial cell
diff --git a/fastlane/metadata/android/fr-FR/changelogs/26.txt b/fastlane/metadata/android/fr-FR/changelogs/26.txt
new file mode 100644
index 0000000000000000000000000000000000000000..46bb5204f0e7386a25b7e8cf6a082f68375fb4a3
--- /dev/null
+++ b/fastlane/metadata/android/fr-FR/changelogs/26.txt
@@ -0,0 +1 @@
+Correction sur l'interdiction de modification de la valeur d'une cellule initiale
diff --git a/lib/provider/data.dart b/lib/provider/data.dart
index a4adb6f36ac3ad741afe9b014aad96b8def0f7e6..69814fb792485bc8ed3134d579c10032871fc5f5 100644
--- a/lib/provider/data.dart
+++ b/lib/provider/data.dart
@@ -124,7 +124,9 @@ class Data extends ChangeNotifier {
   }
 
   updateCellValue(int col, int row, int value) {
-    _cells[row][col].value = value;
+    if (!_cells[row][col].isFixed) {
+      _cells[row][col].value = value;
+    }
     notifyListeners();
   }