diff --git a/build-package.sh b/build-package.sh
index 290faa959..93b9eff59 100755
--- a/build-package.sh
+++ b/build-package.sh
@@ -259,7 +259,7 @@ termux_step_setup_variables() {
 	: "${TERMUX_ANDROID_HOME:="/data/data/com.termux/files/home"}"
 	: "${TERMUX_DEBUG:=""}"
 	: "${TERMUX_PKG_API_LEVEL:="21"}"
-	: "${TERMUX_ANDROID_BUILD_TOOLS_VERSION:="27.0.3"}"
+	: "${TERMUX_ANDROID_BUILD_TOOLS_VERSION:="28.0.1"}"
 	: "${TERMUX_NDK_VERSION:="17"}"
 
 	if [ "x86_64" = "$TERMUX_ARCH" ] || [ "aarch64" = "$TERMUX_ARCH" ]; then
@@ -284,7 +284,7 @@ termux_step_setup_variables() {
 	# We do not put all of build-tools/$TERMUX_ANDROID_BUILD_TOOLS_VERSION/ into PATH
 	# to avoid stuff like arm-linux-androideabi-ld there to conflict with ones from
 	# the standalone toolchain.
-	TERMUX_DX=$ANDROID_HOME/build-tools/$TERMUX_ANDROID_BUILD_TOOLS_VERSION/dx
+	TERMUX_D8=$ANDROID_HOME/build-tools/$TERMUX_ANDROID_BUILD_TOOLS_VERSION/d8
 
 	TERMUX_COMMON_CACHEDIR="$TERMUX_TOPDIR/_cache"
 	TERMUX_DEBDIR="$TERMUX_SCRIPTDIR/debs"
diff --git a/packages/apksigner/build.sh b/packages/apksigner/build.sh
index 4f67ac338..e7bb7da27 100644
--- a/packages/apksigner/build.sh
+++ b/packages/apksigner/build.sh
@@ -1,6 +1,7 @@
 TERMUX_PKG_HOMEPAGE=https://github.com/fornwall/apksigner
 TERMUX_PKG_DESCRIPTION="APK signing tool"
 TERMUX_PKG_VERSION=0.7
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SHA256=340560c4f75af3501f037452bcf184fa48fd18bc877a4cce9a51a3fa047b4b38
 TERMUX_PKG_SRCURL=https://github.com/fornwall/apksigner/archive/v${TERMUX_PKG_VERSION}.tar.gz
 TERMUX_PKG_BUILD_IN_SRC=yes
@@ -9,11 +10,21 @@ TERMUX_PKG_PLATFORM_INDEPENDENT=true
 termux_step_make () {
 	mkdir -p $TERMUX_PREFIX/share/{dex,man/man1}
 
-	./gradlew
-	$TERMUX_DX --dex --output $TERMUX_PREFIX/share/dex/apksigner.dex ./build/libs/src-all.jar
-	echo '#!/bin/sh' > $TERMUX_PREFIX/bin/apksigner
-	echo "dalvikvm -cp $TERMUX_PREFIX/share/dex/apksigner.dex net.fornwall.apksigner.Main \$@" >> $TERMUX_PREFIX/bin/apksigner
-	chmod +x $TERMUX_PREFIX/bin/apksigner
-
 	cp apksigner.1 $TERMUX_PREFIX/share/man/man1/
+
+	./gradlew
+	$TERMUX_D8 \
+		--classpath $ANDROID_HOME/platforms/android-$TERMUX_PKG_API_LEVEL/android.jar \
+		--release \
+		--min-api $TERMUX_PKG_API_LEVEL \
+		--output $TERMUX_PKG_TMPDIR \
+		./build/libs/src-all.jar
+
+	cd $TERMUX_PKG_TMPDIR
+	jar cf apksigner.jar classes.dex
+	mv apksigner.jar $TERMUX_PREFIX/share/dex/apksigner.jar
+
+	echo '#!/bin/sh' > $TERMUX_PREFIX/bin/apksigner
+	echo "dalvikvm -cp $TERMUX_PREFIX/share/dex/apksigner.jar net.fornwall.apksigner.Main \$@" >> $TERMUX_PREFIX/bin/apksigner
+	chmod +x $TERMUX_PREFIX/bin/apksigner
 }
diff --git a/packages/dx/build.sh b/packages/dx/build.sh
index b7af1b627..ad5ff8ce1 100755
--- a/packages/dx/build.sh
+++ b/packages/dx/build.sh
@@ -20,10 +20,16 @@ termux_step_make_install () {
 
 	# Dex the rewritten jar file:
 	mkdir -p $TERMUX_PREFIX/share/dex
-	$TERMUX_DX --dex \
-		--output $TERMUX_PREFIX/share/dex/dx.dex \
+	$TERMUX_D8 \
+		--release \
+		--min-api 21 \
+		--output $TERMUX_PKG_TMPDIR \
 		$REWRITTEN_DX
 
+	cd $TERMUX_PKG_TMPDIR
+	jar cf dx.jar classes.dex
+	mv dx.jar $TERMUX_PREFIX/share/dex/dx.jar
+
 	install $TERMUX_PKG_BUILDER_DIR/dx $TERMUX_PREFIX/bin/dx
 	perl -p -i -e "s%\@TERMUX_PREFIX\@%${TERMUX_PREFIX}%g" $TERMUX_PREFIX/bin/dx
 }
diff --git a/packages/dx/dx b/packages/dx/dx
index d6d35a016..221159860 100755
--- a/packages/dx/dx
+++ b/packages/dx/dx
@@ -2,5 +2,5 @@
 
 exec dalvikvm \
 	-Xmx256m \
-	-cp @TERMUX_PREFIX@/share/dex/dx.dex \
+	-cp @TERMUX_PREFIX@/share/dex/dx.jar \
 	dx.dx.command.Main $@
diff --git a/packages/ecj/build.sh b/packages/ecj/build.sh
index a7b226525..9c2591e14 100755
--- a/packages/ecj/build.sh
+++ b/packages/ecj/build.sh
@@ -4,6 +4,7 @@ TERMUX_PKG_VERSION=4.6.2
 _date=201611241400
 TERMUX_PKG_REVISION=3
 TERMUX_PKG_SRCURL=http://eclipse.mirror.wearetriple.com/eclipse/downloads/drops${TERMUX_PKG_VERSION:0:1}/R-${TERMUX_PKG_VERSION}-${_date}/ecj-${TERMUX_PKG_VERSION}.jar
+# http://www.eclipse.org/downloads/download.php?file=/eclipse/downloads/drops4/R-4.7.2-201711300510/ecj-4.7.2.jar
 TERMUX_PKG_SHA256=9953dc2be829732e1b939106a71de018f660891220dbca559a5c7bff84883e51
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
 
@@ -12,19 +13,37 @@ termux_step_extract_package () {
 }
 
 termux_step_make () {
-	RAW_JAR=$TERMUX_PKG_CACHEDIR/ecj-${TERMUX_PKG_VERSION}.jar
-	if [ ! -f $RAW_JAR ]; then
-		termux_download $TERMUX_PKG_SRCURL $RAW_JAR \
-			$TERMUX_PKG_SHA256
-	fi
+	local RAW_JAR=$TERMUX_PKG_CACHEDIR/ecj-${TERMUX_PKG_VERSION}.jar
+	termux_download $TERMUX_PKG_SRCURL \
+		$RAW_JAR \
+		$TERMUX_PKG_SHA256
 
-        mkdir -p $TERMUX_PREFIX/share/{dex,java}
-	$TERMUX_DX \
-		--dex \
-		--output=$TERMUX_PREFIX/share/dex/ecj.jar \
+	mkdir -p $TERMUX_PREFIX/share/{dex,java}
+	$TERMUX_D8 \
+		--release \
+		--min-api 21 \
+		--output $TERMUX_PKG_TMPDIR \
 		$RAW_JAR
 
+	# Package classes.dex into jar:
 	cd $TERMUX_PKG_TMPDIR
+	jar cf ecj.jar classes.dex
+	# Add needed properties file to jar file:
+	jar xf $RAW_JAR org/eclipse/jdt/internal/compiler/batch/messages.properties
+	jar uf ecj.jar  org/eclipse/jdt/internal/compiler/batch/messages.properties
+	jar xf $RAW_JAR org/eclipse/jdt/internal/compiler/problem/messages.properties
+	jar uf ecj.jar  org/eclipse/jdt/internal/compiler/problem/messages.properties
+	jar xf $RAW_JAR org/eclipse/jdt/internal/compiler/messages.properties
+	jar uf ecj.jar  org/eclipse/jdt/internal/compiler/messages.properties
+	jar xf $RAW_JAR org/eclipse/jdt/internal/compiler/parser/readableNames.props
+	jar uf ecj.jar  org/eclipse/jdt/internal/compiler/parser/readableNames.props
+	for i in `seq 1 24`; do
+		jar xf $RAW_JAR org/eclipse/jdt/internal/compiler/parser/parser$i.rsc
+		jar uf ecj.jar  org/eclipse/jdt/internal/compiler/parser/parser$i.rsc
+	done
+	# Move into place:
+	mv ecj.jar $TERMUX_PREFIX/share/dex/ecj.jar
+
 	rm -rf android-jar
 	mkdir android-jar
 	cd android-jar
diff --git a/scripts/generate-repology-metadata.sh b/scripts/generate-repology-metadata.sh
index 6d265d45a..6dcf28252 100755
--- a/scripts/generate-repology-metadata.sh
+++ b/scripts/generate-repology-metadata.sh
@@ -35,7 +35,7 @@ check_package() { # path
 
 export TERMUX_ARCH=aarch64
 export TERMUX_NDK_VERSION=17
-TERMUX_ANDROID_BUILD_TOOLS_VERSION=27.0.3
+TERMUX_ANDROID_BUILD_TOOLS_VERSION=28.0.1
 
 echo '['
 
diff --git a/scripts/list-versions.sh b/scripts/list-versions.sh
index bada14c78..e37d945dc 100755
--- a/scripts/list-versions.sh
+++ b/scripts/list-versions.sh
@@ -6,7 +6,7 @@ check_package() { # path
 	TERMUX_PKG_REVISION=0
 	TERMUX_ARCH=aarch64
 	TERMUX_NDK_VERSION=17
-	TERMUX_ANDROID_BUILD_TOOLS_VERSION=27.0.3
+	TERMUX_ANDROID_BUILD_TOOLS_VERSION=28.0.1
 	. $path/build.sh
 	if [ "$TERMUX_PKG_REVISION" != "0" ] || [ "$TERMUX_PKG_VERSION" != "${TERMUX_PKG_VERSION/-/}" ]; then
 		TERMUX_PKG_VERSION+="-$TERMUX_PKG_REVISION"
diff --git a/scripts/setup-android-sdk.sh b/scripts/setup-android-sdk.sh
index 3138ea512..3cfb9331c 100755
--- a/scripts/setup-android-sdk.sh
+++ b/scripts/setup-android-sdk.sh
@@ -38,4 +38,4 @@ fi
 yes | $ANDROID_HOME/tools/bin/sdkmanager --licenses
 
 # The android-21 platform is used in the ecj package:
-$ANDROID_HOME/tools/bin/sdkmanager "build-tools;27.0.3" "platforms;android-27" "platforms;android-21"
+$ANDROID_HOME/tools/bin/sdkmanager "build-tools;28.0.1" "platforms;android-27" "platforms;android-21"