diff --git a/braille/brltty/build.gradle b/braille/brltty/build.gradle
index f16ff128d..9af370da5 100644
--- a/braille/brltty/build.gradle
+++ b/braille/brltty/build.gradle
@@ -3,6 +3,7 @@ apply from: "../../shared.gradle"
 
 android {
     namespace "com.google.android.accessibility.braille.brltty"
+    ndkVersion "26.2.11394342"
     externalNativeBuild {
         ndkBuild {
             path file('src/phone/jni/Android.mk')
diff --git a/braille/translate/build.gradle b/braille/translate/build.gradle
index f78c649e0..bcf823c06 100644
--- a/braille/translate/build.gradle
+++ b/braille/translate/build.gradle
@@ -3,6 +3,7 @@ apply from: "../../shared.gradle"
 
 android {
     namespace "com.google.android.accessibility.braille.translate"
+    ndkVersion "26.2.11394342"
     externalNativeBuild {
         ndkBuild {
             path file('src/phone/jni/Android.mk')