diff --git a/httpasyncclient-osgi/pom.xml b/httpasyncclient-osgi/pom.xml
index d4e5ec7..acc85fa 100644
--- a/httpasyncclient-osgi/pom.xml
+++ b/httpasyncclient-osgi/pom.xml
@@ -39,8 +39,8 @@
   <packaging>bundle</packaging>
 
   <properties>
-    <httpcore.osgi.import.version>"[4.3.0, 4.4.0)"</httpcore.osgi.import.version>
-    <httpclient.osgi.import.version>"[4.3.0, 4.4.0)"</httpclient.osgi.import.version>
+    <httpcore.osgi.import.version>"[4.4.0, 4.5.0)"</httpcore.osgi.import.version>
+    <httpclient.osgi.import.version>"[4.4.0, 4.5.0)"</httpclient.osgi.import.version>
     <commons-logging.osgi.import.version>"[1.1.0, 1.2.0)"</commons-logging.osgi.import.version>
   </properties>
 
diff --git a/pom.xml b/pom.xml
index 6b5910b..efc1417 100644
--- a/pom.xml
+++ b/pom.xml
@@ -67,7 +67,7 @@
     <maven.compiler.source>1.6</maven.compiler.source>
     <maven.compiler.target>1.6</maven.compiler.target>
     <httpcore.version>4.4-alpha1</httpcore.version>
-    <httpclient.version>4.3.3</httpclient.version>
+    <httpclient.version>4.4-alpha1</httpclient.version>
     <commons-logging.version>1.1.3</commons-logging.version>
     <commons-io.version>2.4</commons-io.version>
     <junit.version>4.11</junit.version>