diff --git a/packages/ecj/build.sh b/packages/ecj/build.sh
index db1d65e00..6b3b79790 100755
--- a/packages/ecj/build.sh
+++ b/packages/ecj/build.sh
@@ -1,10 +1,12 @@
 TERMUX_PKG_HOMEPAGE=http://www.eclipse.org/jdt/core/
 TERMUX_PKG_DESCRIPTION="Eclipse Compiler for Java"
 TERMUX_PKG_VERSION=4.7.2
-_date=201711300510
+local _date=201711300510
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SHA256=43c2f45d1fd9afb8b04e547a253041957f19b2f21d8780cdb3a8706ce9b9b9ee
 TERMUX_PKG_SRCURL=http://archive.eclipse.org/eclipse/downloads/drops${TERMUX_PKG_VERSION:0:1}/R-$TERMUX_PKG_VERSION-$_date/ecj-$TERMUX_PKG_VERSION.jar
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
+TERMUX_PKG_CONFLICTS="ecj4.6"
 
 termux_step_extract_package () {
 	mkdir $TERMUX_PKG_SRCDIR
diff --git a/packages/ecj4.6/build.sh b/packages/ecj4.6/build.sh
index 04e1ee23f..9f7da906c 100755
--- a/packages/ecj4.6/build.sh
+++ b/packages/ecj4.6/build.sh
@@ -1,12 +1,11 @@
 TERMUX_PKG_HOMEPAGE=http://www.eclipse.org/jdt/core/
 TERMUX_PKG_DESCRIPTION="Eclipse Compiler for Java, for android 5 and 6"
 TERMUX_PKG_VERSION=4.6.2
-_date=201611241400
+local _date=201611241400
 TERMUX_PKG_SHA256=9953dc2be829732e1b939106a71de018f660891220dbca559a5c7bff84883e51
 TERMUX_PKG_SRCURL=http://archive.eclipse.org/eclipse/downloads/drops${TERMUX_PKG_VERSION:0:1}/R-$TERMUX_PKG_VERSION-$_date/ecj-$TERMUX_PKG_VERSION.jar
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
 TERMUX_PKG_CONFLICTS="ecj"
-TERMUX_PKG_REPLACES="ecj"
 
 termux_step_extract_package () {
 	mkdir $TERMUX_PKG_SRCDIR