diff --git a/0001-Fix-JAR-post-processing-during-installation.patch b/0001-Fix-JAR-post-processing-during-installation.patch
index 0acde03..71adc2f 100644
--- a/0001-Fix-JAR-post-processing-during-installation.patch
+++ b/0001-Fix-JAR-post-processing-during-installation.patch
@@ -1,4 +1,4 @@
-From de2dd29f853fdb39ec5916a6c388f81ced4b61a5 Mon Sep 17 00:00:00 2001
+From b0e7fb7161f2260fbbeab9435da755b2fefe6570 Mon Sep 17 00:00:00 2001
 From: Mikolaj Izdebski <mizdebsk@redhat.com>
 Date: Thu, 29 May 2014 18:18:30 +0200
 Subject: [PATCH 1/3] Fix JAR post-processing during installation
diff --git a/0002-Respect-xmvn.resolver.disableEffectivePom-property.patch b/0002-Respect-xmvn.resolver.disableEffectivePom-property.patch
index 34e96be..5fa90a3 100644
--- a/0002-Respect-xmvn.resolver.disableEffectivePom-property.patch
+++ b/0002-Respect-xmvn.resolver.disableEffectivePom-property.patch
@@ -1,4 +1,4 @@
-From f428fae1edfc860ed2bcabf920f3cba14a5a9ef5 Mon Sep 17 00:00:00 2001
+From 0584b0a5bc9aacfec5d668f891b1f8b26748c3c5 Mon Sep 17 00:00:00 2001
 From: Mikolaj Izdebski <mizdebsk@redhat.com>
 Date: Fri, 30 May 2014 06:52:05 +0200
 Subject: [PATCH 2/3] Respect xmvn.resolver.disableEffectivePom property
@@ -9,12 +9,12 @@ generated.  A property saying that dependencies were
 omitted is added so that XMvn won't generate effective
 POMs for artfacts with no dependencies in metadata.
 ---
- .../xmvn/resolver/impl/DefaultResolver.java        | 22 ++++++++++++++--------
+ .../xmvn/resolver/impl/DefaultResolver.java        | 23 ++++++++++++++--------
  .../resolver/impl/depmap/DepmapBasedResolver.java  |  2 +-
- 2 files changed, 15 insertions(+), 9 deletions(-)
+ 2 files changed, 16 insertions(+), 9 deletions(-)
 
 diff --git a/xmvn-core/src/main/java/org/fedoraproject/xmvn/resolver/impl/DefaultResolver.java b/xmvn-core/src/main/java/org/fedoraproject/xmvn/resolver/impl/DefaultResolver.java
-index 9572dc6..8c55ebe 100644
+index 9572dc6..3537988 100644
 --- a/xmvn-core/src/main/java/org/fedoraproject/xmvn/resolver/impl/DefaultResolver.java
 +++ b/xmvn-core/src/main/java/org/fedoraproject/xmvn/resolver/impl/DefaultResolver.java
 @@ -18,6 +18,7 @@ package org.fedoraproject.xmvn.resolver.impl;
@@ -25,16 +25,17 @@ index 9572dc6..8c55ebe 100644
  
  import javax.inject.Inject;
  import javax.inject.Named;
-@@ -73,6 +74,8 @@ public class DefaultResolver
+@@ -73,6 +74,9 @@ public class DefaultResolver
      @Override
      public ResolutionResult resolve( ResolutionRequest request )
      {
-+        Properties properties = System.getProperties();
++        Properties properties = new Properties();
++        properties.putAll( System.getProperties() );
 +
          // FIXME: bisect is not used
          Artifact artifact = request.getArtifact();
          logger.debug( "Trying to resolve artifact {}", artifact );
-@@ -90,9 +93,15 @@ public class DefaultResolver
+@@ -90,9 +94,15 @@ public class DefaultResolver
              compatVersion = artifact.getVersion();
          }
  
@@ -51,7 +52,7 @@ index 9572dc6..8c55ebe 100644
          {
              try
              {
-@@ -122,15 +131,12 @@ public class DefaultResolver
+@@ -122,15 +132,12 @@ public class DefaultResolver
          }
  
          // TODO: drop support for depmaps
diff --git a/0003-Fix-return-code-of-xmvn-install.patch b/0003-Fix-return-code-of-xmvn-install.patch
index a070da7..5fb6b68 100644
--- a/0003-Fix-return-code-of-xmvn-install.patch
+++ b/0003-Fix-return-code-of-xmvn-install.patch
@@ -1,4 +1,4 @@
-From 4f01aad38d63a4f70a2ac08a9264690ffc8df133 Mon Sep 17 00:00:00 2001
+From ece7609ff20c64cd58a7b38fdb851b0fd69b02d1 Mon Sep 17 00:00:00 2001
 From: Mikolaj Izdebski <mizdebsk@redhat.com>
 Date: Fri, 30 May 2014 09:34:41 +0200
 Subject: [PATCH 3/3] Fix return code of xmvn-install
diff --git a/xmvn.spec b/xmvn.spec
index 584cde9..306f70f 100644
--- a/xmvn.spec
+++ b/xmvn.spec
@@ -1,6 +1,6 @@
 Name:           xmvn
 Version:        2.0.0
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Local Extensions for Apache Maven
 License:        ASL 2.0
 URL:            http://mizdebsk.fedorapeople.org/xmvn
@@ -287,6 +287,9 @@ end
 %doc LICENSE NOTICE
 
 %changelog
+* Fri May 30 2014 Mikolaj Izdebski <mizdebsk@redhat.com> - 2.0.0-4
+- Don't modify system properties during artifact resolution
+
 * Fri May 30 2014 Mikolaj Izdebski <mizdebsk@redhat.com> - 2.0.0-3
 - Add patch to support xmvn.resolver.disableEffectivePom property