diff --git a/.gitignore b/.gitignore
index 5563398..a73a911 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@
 /epl-v10.html
 /aether-0.9.0.M2.tar.bz2
 /aether-0.9.0.M3.tar.bz2
+/aether-0.9.0.M4.tar.bz2
diff --git a/0001-Port-from-Sonatype-Sisu-to-Eclipse-Sisu.patch b/0001-Port-from-Sonatype-Sisu-to-Eclipse-Sisu.patch
deleted file mode 100644
index a96506a..0000000
--- a/0001-Port-from-Sonatype-Sisu-to-Eclipse-Sisu.patch
+++ /dev/null
@@ -1,77 +0,0 @@
-From 625bb36df9da578eb5bf552bd6123aaa07ebb71f Mon Sep 17 00:00:00 2001
-From: Mikolaj Izdebski <mizdebsk@redhat.com>
-Date: Thu, 25 Jul 2013 07:32:20 +0200
-Subject: [PATCH] Port from Sonatype Sisu to Eclipse Sisu
-
----
- aether-connector-file/pom.xml  | 4 ++--
- aether-connector-wagon/pom.xml | 4 ++--
- aether-impl/pom.xml            | 4 ++--
- pom.xml                        | 6 +++---
- 4 files changed, 9 insertions(+), 9 deletions(-)
-
-diff --git a/aether-connector-file/pom.xml b/aether-connector-file/pom.xml
-index a194621..7fe06af 100644
---- a/aether-connector-file/pom.xml
-+++ b/aether-connector-file/pom.xml
-@@ -54,8 +54,8 @@
-       <optional>true</optional>
-     </dependency>
-     <dependency>
--      <groupId>org.sonatype.sisu</groupId>
--      <artifactId>sisu-inject-plexus</artifactId>
-+      <groupId>org.eclipse.sisu</groupId>
-+      <artifactId>org.eclipse.sisu.plexus</artifactId>
-       <scope>test</scope>
-     </dependency>
-     <dependency>
-diff --git a/aether-connector-wagon/pom.xml b/aether-connector-wagon/pom.xml
-index ba5b90e..0601fa9 100644
---- a/aether-connector-wagon/pom.xml
-+++ b/aether-connector-wagon/pom.xml
-@@ -72,8 +72,8 @@
-       <optional>true</optional>
-     </dependency>
-     <dependency>
--      <groupId>org.sonatype.sisu</groupId>
--      <artifactId>sisu-inject-plexus</artifactId>
-+      <groupId>org.eclipse.sisu</groupId>
-+      <artifactId>org.eclipse.sisu.plexus</artifactId>
-       <optional>true</optional>
-     </dependency>
-     <!-- element removed by maintainer: pom:dependency[pom:scope[text()='test']] -->
-diff --git a/aether-impl/pom.xml b/aether-impl/pom.xml
-index 58c5773..c5fdbd6 100644
---- a/aether-impl/pom.xml
-+++ b/aether-impl/pom.xml
-@@ -54,8 +54,8 @@
-       <optional>true</optional>
-     </dependency>
-     <dependency>
--      <groupId>org.sonatype.sisu</groupId>
--      <artifactId>sisu-inject-plexus</artifactId>
-+      <groupId>org.eclipse.sisu</groupId>
-+      <artifactId>org.eclipse.sisu.plexus</artifactId>
-       <scope>provided</scope>
-       <optional>true</optional>
-     </dependency>
-diff --git a/pom.xml b/pom.xml
-index ff9ce8f..6d7f7f7 100644
---- a/pom.xml
-+++ b/pom.xml
-@@ -208,9 +208,9 @@
-       </dependency>
- 
-       <dependency>
--        <groupId>org.sonatype.sisu</groupId>
--        <artifactId>sisu-inject-plexus</artifactId>
--        <version>2.3.0</version>
-+        <groupId>org.eclipse.sisu</groupId>
-+        <artifactId>org.eclipse.sisu.plexus</artifactId>
-+        <version>0.0.0.M2a</version>
-       </dependency>
- 
-       <dependency>
--- 
-1.8.1.4
-
diff --git a/aether.spec b/aether.spec
index 3aea9e2..9a7e299 100644
--- a/aether.spec
+++ b/aether.spec
@@ -1,9 +1,9 @@
-%global vertag M3
+%global vertag M4
 
 Name:           aether
 Epoch:          1
 Version:        0.9.0
-Release:        0.4.%{vertag}%{?dist}
+Release:        0.5.%{vertag}%{?dist}
 Summary:        Library to resolve, install and deploy artifacts the Maven way
 License:        EPL
 URL:            http://eclipse.org/aether
@@ -12,15 +12,19 @@ BuildArch:      noarch
 Source0:        http://git.eclipse.org/c/%{name}/%{name}-core.git/snapshot/%{name}-%{version}.%{vertag}.tar.bz2
 
 BuildRequires:  maven-local
+BuildRequires:  mvn(com.google.inject:guice::no_aop:)
 BuildRequires:  mvn(javax.inject:javax.inject)
+BuildRequires:  mvn(org.apache.felix:maven-bundle-plugin)
 BuildRequires:  mvn(org.apache.httpcomponents:httpclient)
 BuildRequires:  mvn(org.apache.maven.wagon:wagon-provider-api)
 BuildRequires:  mvn(org.codehaus.mojo:build-helper-maven-plugin) >= 1.7
 BuildRequires:  mvn(org.codehaus.plexus:plexus-classworlds)
 BuildRequires:  mvn(org.codehaus.plexus:plexus-component-annotations)
+BuildRequires:  mvn(org.codehaus.plexus:plexus-component-metadata)
 BuildRequires:  mvn(org.codehaus.plexus:plexus-utils)
 BuildRequires:  mvn(org.eclipse.sisu:org.eclipse.sisu.plexus)
 BuildRequires:  mvn(org.eclipse.sisu:sisu-maven-plugin)
+BuildRequires:  mvn(org.hamcrest:hamcrest-library)
 BuildRequires:  mvn(org.slf4j:jcl-over-slf4j)
 BuildRequires:  mvn(org.slf4j:slf4j-api)
 
@@ -143,10 +147,9 @@ rm -rf aether-transport-http/src/test
 
 %pom_remove_plugin :maven-enforcer-plugin
 
-# Workaround for rhbz#911365
-%pom_xpath_inject pom:project "<dependencies/>"
-%pom_add_dep cglib:cglib:any:test
-%pom_add_dep aopalliance:aopalliance:any:test
+# Upstream uses Sisu 0.0.0.M4, but Fedora has 0.0.0.M5.  In M5 scope
+# of Guice dependency was changed from "compile" to "provided".
+%pom_add_dep com.google.inject:guice::provided . "<classifier>no_aop</classifier>"
 
 %build
 %mvn_build -s
@@ -176,6 +179,10 @@ rm -rf aether-transport-http/src/test
 %doc epl-v10.html notice.html
 
 %changelog
+* Mon Jan  6 2014 Mikolaj Izdebski <mizdebsk@redhat.com> - 1:0.9.0-0.5.M4
+- Update to upstream version 0.9.0.M4
+- Remove workaround for rhbz#911365
+
 * Wed Aug 14 2013 Mikolaj Izdebski <mizdebsk@redhat.com> - 1:0.9.0-0.4.M3
 - Add missing Obsoletes: aether-connector-file
 - Resolves: rhbz#996764
diff --git a/sources b/sources
index d0e616c..b65fc40 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-c81ef36155719a0cdc1473654e2f0d3b  aether-0.9.0.M3.tar.bz2
+99a4baf37db10571489ce22cf406b21a  aether-0.9.0.M4.tar.bz2