diff --git a/science/gis/postgis/actions.py b/science/gis/postgis/actions.py
index 77b512c63c..e55c047a1a 100644
--- a/science/gis/postgis/actions.py
+++ b/science/gis/postgis/actions.py
@@ -16,7 +16,7 @@ def setup():
     pisitools.dosed("libtool", " -shared ", " -Wl,-O1,--as-needed -shared ")
 
 def build():
-    autotools.make()
+    autotools.make("-j1")
 
 def install():
     autotools.rawInstall('DESTDIR=%s' % get.installDIR())
diff --git a/science/gis/postgis/pspec.xml b/science/gis/postgis/pspec.xml
index 172782ff27..bbea472a01 100644
--- a/science/gis/postgis/pspec.xml
+++ b/science/gis/postgis/pspec.xml
@@ -12,16 +12,17 @@
         <IsA>library</IsA>
         <Summary>Adds support for geographic objects to PostgreSQL</Summary>
         <Description>PostGIS adds support for geographic objects to the PostgreSQL object-relational database. In effect, PostGIS "spatially enables" the PostgreSQL server, allowing it to be used as a backend spatial database for geographic information systems (GIS), much like ESRI's SDE or Oracle's Spatial extension.</Description>
-        <Archive sha1sum="5ac24b95495be258a7430c08b3407d7beca1832a" type="targz">http://download.osgeo.org/postgis/source/postgis-2.1.5.tar.gz</Archive>
+        <Archive sha1sum="615f86c34ed4431383432d34f4b6d558c71fb94f" type="targz">http://download.osgeo.org/postgis/source/postgis-2.2.1.tar.gz</Archive>
         <BuildDependencies>
-            <Dependency>gtk2-devel</Dependency>
+            <!--Dependency>gtk2-devel</Dependency-->
             <Dependency>proj-devel</Dependency>
             <Dependency>gdal-devel</Dependency>
             <Dependency>geos-devel</Dependency>
-            <Dependenc>postgresql-lib</Dependenc>
+            <Dependency>json-c-devel</Dependency>
+            <Dependency>postgresql-lib</Dependency>
             <Dependency>libxslt-devel</Dependency>
             <Dependency>libxml2-devel</Dependency>
-            <Dependency>imagemagick-devel</Dependency>
+            <!--Dependency>imagemagick-devel</Dependency-->
         </BuildDependencies>
     </Source>
 
@@ -31,6 +32,10 @@
             <Dependency>proj</Dependency>
             <Dependency>gdal</Dependency>
             <Dependency>geos</Dependency>
+            <Dependency>zlib</Dependency>
+            <Dependency>libxml2</Dependency>
+            <Dependency>libpcre</Dependency>
+            <Dependency>json-c</Dependency>
             <Dependency>postgresql-lib</Dependency>
         </RuntimeDependencies>
         <Files>
@@ -46,6 +51,13 @@
     </Package>
 
     <History>
+        <Update release="9">
+            <Date>2016-02-25</Date>
+            <Version>2.2.1</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Ertuğrul Erata</Name>
+            <Email>ertugrulerata@gmail.com</Email>
+        </Update>
         <Update release="8">
             <Date>2015-01-25</Date>
             <Version>2.1.5</Version>