diff --git a/ion/src/simulator/android/Makefile b/ion/src/simulator/android/Makefile
index 121fa7122f..0d52d7b7d8 100644
--- a/ion/src/simulator/android/Makefile
+++ b/ion/src/simulator/android/Makefile
@@ -68,7 +68,7 @@ apk_deps += $(addprefix $(BUILD_DIR)/app/res/,mipmap/ic_launcher.png mipmap-v26/
 
 $(BUILD_DIR)/%.apk: $(apk_deps)
 	$(call rule_label,GRADLE)
-	$(Q) ANDROID_HOME=$(ANDROID_HOME) EPSILON_VERSION=$(EPSILON_VERSION) OMEGA_VERSION=$(OMEGA_VERSION) BUILD_DIR=$(BUILD_DIR) EPSILON_VARIANT=$* ion/src/simulator/android/gradlew -b ion/src/simulator/android/build.gradle assembleRelease
+	$(Q) ANDROID_HOME=$(ANDROID_HOME) EPSILON_VERSION=$(EPSILON_VERSION) OMEGA_VERSION=$(OMEGA_VERSION) BUILD_DIR=$(BUILD_DIR) EPSILON_VARIANT=$* ion/src/simulator/android/gradlew -p ion/src/simulator/android/ assembleRelease
 	$(Q) cp $(BUILD_DIR)/app/outputs/apk/release/android-release*.apk $@
 
 endif
diff --git a/ion/src/simulator/android/build.gradle b/ion/src/simulator/android/build.gradle
index bdfa9078fd..bcc34dbed8 100644
--- a/ion/src/simulator/android/build.gradle
+++ b/ion/src/simulator/android/build.gradle
@@ -12,7 +12,7 @@ def fileIfPath(path) {
 
 buildscript {
   repositories {
-    jcenter()
+    mavenCentral()
     google()
   }
   dependencies {
@@ -22,7 +22,7 @@ buildscript {
 
 allprojects {
   repositories {
-    jcenter()
+    mavenCentral()
     google()
   }
   buildDir = BUILD_DIR