diff --git a/builds/android/android_build_helper.sh b/builds/android/android_build_helper.sh
index a5e4eb50..f1abbf26 100644
--- a/builds/android/android_build_helper.sh
+++ b/builds/android/android_build_helper.sh
@@ -75,17 +75,17 @@ function android_build_env {
     
     if [ -z "$ANDROID_NDK_ROOT" ]; then
         ANDROID_BUILD_FAIL+=("Please set the ANDROID_NDK_ROOT environment variable")
-        ANDROID_BUILD_FAIL+=("  (eg. \"/home/user/android/android-ndk-r9d\")")
+        ANDROID_BUILD_FAIL+=("  (eg. \"/home/user/android/android-ndk-r11c\")")
     fi
     
     if [ -z "$TOOLCHAIN_PATH" ]; then
         ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_PATH environment variable")
-        ANDROID_BUILD_FAIL+=("  (eg. \"/home/user/android/android-ndk-r9d/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin\")")
+        ANDROID_BUILD_FAIL+=("  (eg. \"/home/user/android/android-ndk-r11c/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin\")")
     fi
     
     if [ -z "$TOOLCHAIN_NAME" ]; then
         ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_NAME environment variable")
-        ANDROID_BUILD_FAIL+=("  (eg. \"arm-linux-androideabi-4.8\")")
+        ANDROID_BUILD_FAIL+=("  (eg. \"arm-linux-androideabi-4.9\")")
     fi
     
     if [ -z "$TOOLCHAIN_HOST" ]; then
@@ -210,21 +210,21 @@ function _android_build_opts_process_cxx_stl {
         ;;
         esac
     ;;
-    gnustl_shared_48)
+    gnustl_shared_49)
         LIBS+=" -lgnustl_shared"
-        CPPFLAGS+=" -I${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.8/include"
+        CPPFLAGS+=" -I${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.9/include"
         case "${TOOLCHAIN_ARCH}" in
         arm)
-            LDFLAGS+=" -L${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.8/libs/armeabi"
-            CPPFLAGS+=" -I${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.8/libs/armeabi/include"
+            LDFLAGS+=" -L${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi"
+            CPPFLAGS+=" -I${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi/include"
         ;;
         x86)
-            LDFLAGS+=" -L${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.8/libs/x86"
-            CPPFLAGS+=" -I${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.8/libs/x86/include"
+            LDFLAGS+=" -L${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.9/libs/x86"
+            CPPFLAGS+=" -I${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.9/libs/x86/include"
         ;;
         mips)
-            LDFLAGS+=" -L${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.8/libs/mips"
-            CPPFLAGS+=" -I${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.8/libs/mips/include"
+            LDFLAGS+=" -L${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.9/libs/mips"
+            CPPFLAGS+=" -I${ANDROID_NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/4.9/libs/mips/include"
         ;;
         *)
             ANDROID_BUILD_FAIL+=("Unknown combination for ANDROID_BUILD_CXXSTL and TOOLCHAIN_ARCH")
diff --git a/builds/android/build.sh b/builds/android/build.sh
index 9d4d70db..2e3515ba 100755
--- a/builds/android/build.sh
+++ b/builds/android/build.sh
@@ -8,7 +8,7 @@ ANDROID_BUILD_DIR="$(pwd)"
 source ${ANDROID_BUILD_DIR}/android_build_helper.sh
 
 # Choose a C++ standard library implementation from the ndk
-ANDROID_BUILD_CXXSTL="gnustl_shared_48"
+ANDROID_BUILD_CXXSTL="gnustl_shared_49"
 
 # Set up android build environment and set ANDROID_BUILD_OPTS array
 android_build_env
diff --git a/builds/android/ci_build.sh b/builds/android/ci_build.sh
index 58a0d263..83ce6c54 100755
--- a/builds/android/ci_build.sh
+++ b/builds/android/ci_build.sh
@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 
-NDK_VER=android-ndk-r10e
+NDK_VER=android-ndk-r11c
+NDK_ABI_VER=4.9
 
 if [ $TRAVIS_OS_NAME == "linux" ]
 then
@@ -13,17 +14,16 @@ else
     exit 1
 fi
 
-export FILENAME=$NDK_VER-$NDK_PLATFORM.bin
+export FILENAME=$NDK_VER-$NDK_PLATFORM.zip
 
 (cd '/tmp' \
-    && wget http://dl.google.com/android/ndk/$FILENAME \
-    && chmod a+x $FILENAME \
-    && ./$FILENAME &> /dev/null ) || exit 1
+    && wget http://dl.google.com/android/repository/$FILENAME \
+    && unzip $FILENAME &> /dev/null ) || exit 1
 unset FILENAME
 
 export ANDROID_NDK_ROOT="/tmp/$NDK_VER"
-export TOOLCHAIN_PATH="$ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-4.8/prebuilt/$NDK_PLATFORM/bin"
-export TOOLCHAIN_NAME="arm-linux-androideabi-4.8"
+export TOOLCHAIN_PATH="$ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-$NDK_ABI_VER/prebuilt/$NDK_PLATFORM/bin"
+export TOOLCHAIN_NAME="arm-linux-androideabi-$NDK_ABI_VER"
 export TOOLCHAIN_HOST="arm-linux-androideabi"
 export TOOLCHAIN_ARCH="arm"