diff --git a/tuta-sdk/android/sdk/build.gradle.kts b/tuta-sdk/android/sdk/build.gradle.kts
index 2b8cdd57824a..5767ebfae235 100644
--- a/tuta-sdk/android/sdk/build.gradle.kts
+++ b/tuta-sdk/android/sdk/build.gradle.kts
@@ -82,7 +82,7 @@ android {
 		jvmTarget = "1.8"
 	}
 	sourceSets["main"].java.srcDirs(file("${layout.buildDirectory.asFile.get()}/generated-sources/tuta-sdk"))
-	ndkVersion = "28.0.12674087 rc2"
+	ndkVersion = "26.1.10909125"
 }
 
 dependencies {
diff --git a/tuta-sdk/rust/README.md b/tuta-sdk/rust/README.md
index 75642aebaa66..493fe61dfa78 100644
--- a/tuta-sdk/rust/README.md
+++ b/tuta-sdk/rust/README.md
@@ -12,7 +12,7 @@ Android Studio -> Android SDK Manager -> SDK Tools -> NDK (Side by Side) -> Inst
 rustup target add aarch64-linux-android armv7-linux-androideabi x86_64-linux-android i686-linux-android
 
 # add ANDROID_NDK_HOME to your shell profile (.bashrc). the version depends on your NDK version.
-export ANDROID_NDK_HOME=/opt/android-sdk-linux/ndk/28.0.12674087
+export ANDROID_NDK_HOME=/opt/android-sdk-linux/ndk/26.1.10909125
 
 # add NDK toolchain to path
 export PATH=${PATH}:${ANDROID_NDK_HOME}/toolchains/llvm/prebuilt/linux-x86_64/bin/