diff --git a/android.nix b/android.nix
index f031ae0b5803ce9102c0d4bbbd7aab7f068a4544..982c65f3c2775b06e79a00bb5b7a5b4c323bafc0 100644
--- a/android.nix
+++ b/android.nix
@@ -2,7 +2,7 @@
 let
   androidComposition = androidenv.composeAndroidPackages {
     toolsVersion = "26.1.1";
-    # platformToolsVersion = "30.0.5";
+    platformToolsVersion = "31.0.3";
     buildToolsVersions = [ buildToolsVersion ];
     includeEmulator = false;
     emulatorVersion = "30.3.4";
diff --git a/app/app/build.gradle b/app/app/build.gradle
index bccd7550a3a4d73a89cec730c3d9ea4a40c71a65..8cf92ef88795fbb0a2a518f59585b832de58862c 100644
--- a/app/app/build.gradle
+++ b/app/app/build.gradle
@@ -6,7 +6,7 @@ plugins {
 
 android {
     compileSdk 31
-    buildToolsVersion "30.0.3"
+    buildToolsVersion "31.0.0"
     ndkVersion "23.0.7123448"
     externalNativeBuild {
         cmake {
diff --git a/flake.nix b/flake.nix
index caaca65838e00f4b7ba606c4c9d3a5a059942f20..5cc5a42da1af65598246631cf4657797fd13fa9c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -77,7 +77,7 @@
       #   The SDK directory is not writable (/nix/store/46214a16f22rd7q8vkrhsa907ra0405l-androidsdk/libexec/android-sdk)
 
       cmakeVersion = "3.10.2";
-      buildToolsVersion = "30.0.3";
+      buildToolsVersion = "31.0.0";
       # Check out pkgs/development/mobile/androidenv/repo.json for
       # nixpkgs-supported versions.
       ndkVersion = "23.0.7123448-rc1";