diff --git a/ci/android-install-ndk.sh b/ci/android-install-ndk.sh
index 90c9747c3363ba68d53f0e666555591a41a78fab..723e719054a14ceb6b318e1bdeebc83f3820aba0 100644
--- a/ci/android-install-ndk.sh
+++ b/ci/android-install-ndk.sh
@@ -12,7 +12,7 @@
 set -ex
 
 NDK=android-ndk-r19c
-curl --retry 10 -O https://dl.google.com/android/repository/${NDK}-linux-x86_64.zip
+curl --retry 20 -O https://dl.google.com/android/repository/${NDK}-linux-x86_64.zip
 unzip -q ${NDK}-linux-x86_64.zip
 
 case "$1" in
diff --git a/ci/android-install-sdk.sh b/ci/android-install-sdk.sh
index fe28d43417b1183dfb156d02b2eb654d6c92145b..7f2104000fdefc8911f346e9b75bf07dbdcc72b8 100644
--- a/ci/android-install-sdk.sh
+++ b/ci/android-install-sdk.sh
@@ -20,7 +20,7 @@ set -ex
 
 SDK=4333796
 mkdir sdk
-curl --retry 10 https://dl.google.com/android/repository/sdk-tools-linux-${SDK}.zip -O
+curl --retry 20 https://dl.google.com/android/repository/sdk-tools-linux-${SDK}.zip -O
 unzip -q -d sdk sdk-tools-linux-${SDK}.zip
 
 case "$1" in