diff --git a/system/base/leveldb/actions.py b/system/base/leveldb/actions.py
index 7570a875..7fbc4392 100644
--- a/system/base/leveldb/actions.py
+++ b/system/base/leveldb/actions.py
@@ -15,9 +15,9 @@ def check():
     autotools.make("check")
 
 def install():
-    pisitools.dolib_so("libleveldb.so.1.17")
-    pisitools.dosym("libleveldb.so.1.17", "/usr/lib/libleveldb.so.1")
-    pisitools.dosym("libleveldb.so.1.17", "/usr/lib/libleveldb.so")
+    pisitools.dolib_so("libleveldb.so.1.18")
+    pisitools.dosym("libleveldb.so.1.18", "/usr/lib/libleveldb.so.1")
+    pisitools.dosym("libleveldb.so.1.18", "/usr/lib/libleveldb.so")
 
     pisitools.insinto("/usr/include", "include/*")
     pisitools.insinto("/usr/include", "helpers/memenv/memenv.h")
diff --git a/system/base/leveldb/pspec.xml b/system/base/leveldb/pspec.xml
index 60a7bed8..97aad46d 100644
--- a/system/base/leveldb/pspec.xml
+++ b/system/base/leveldb/pspec.xml
@@ -16,7 +16,7 @@
             <Dependency>gperftools-devel</Dependency>
             <Dependency>snappy-devel</Dependency>
         </BuildDependencies>
-        <Archive sha1sum="5ab342abea35be281225bead169c1699828d1dde" type="targz">http://source.pisilinux.org/1.0/leveldb-e353fbc7ea81.tar.gz</Archive>
+        <Archive sha1sum="18684a0ad7a07920d10f5295b171fbf5eeec7337" type="targz">https://github.com/google/leveldb/archive/v1.18.tar.gz</Archive>
     </Source>
 
     <Package>
@@ -42,6 +42,13 @@
     </Package>
 
     <History>
+        <Update release="2">
+            <Date>2015-08-14</Date>
+            <Version>1.18</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Ertuğrul Erata</Name>
+            <Email>ertugrulerata@gmail.com</Email>
+        </Update>
         <Update release="1">
             <Date>2014-06-02</Date>
             <Version>1.17</Version>
diff --git a/system/base/pisi/pspec.xml b/system/base/pisi/pspec.xml
index 4d719777..52784b07 100644
--- a/system/base/pisi/pspec.xml
+++ b/system/base/pisi/pspec.xml
@@ -24,7 +24,7 @@
             <Dependency>gettext</Dependency>
             <Dependency>libunwind-devel</Dependency>
             <Dependency>intltool</Dependency>
-            <Dependency>leveldb-devel</Dependency>
+            <Dependency versionFrom="1.18">leveldb-devel</Dependency>
         </BuildDependencies>
         <Patches>
             <Patch>initialize_filesdb_once.patch</Patch>
@@ -45,7 +45,7 @@
             <Dependency>plyvel</Dependency>
             <Dependency>python</Dependency>
             <Dependency>gettext</Dependency>
-            <Dependency>leveldb</Dependency>
+            <Dependency versionFrom="1.18">leveldb</Dependency>
             <Dependency>piksemel</Dependency>
             <Dependency>comar-api</Dependency>
             <Dependency>urlgrabber</Dependency>
@@ -85,6 +85,13 @@
     </Package>
 
     <History>
+        <Update release="35">
+            <Date>2015-08-14</Date>
+            <Version>2.6</Version>
+            <Comment>Rebuild for leveldb and plyvel.</Comment>
+            <Name>Ertuğrul Erata</Name>
+            <Email>ertugrulerata@gmail.com</Email>
+        </Update>
         <Update release="34">
             <Date>2015-08-01</Date>
             <Version>2.6</Version>
diff --git a/system/base/plyvel/pspec.xml b/system/base/plyvel/pspec.xml
index f071aef6..00d99ac5 100644
--- a/system/base/plyvel/pspec.xml
+++ b/system/base/plyvel/pspec.xml
@@ -13,7 +13,7 @@
         <BuildDependencies>
 	  <Dependency>cython</Dependency>
           <Dependency>python-devel</Dependency>
-          <Dependency>leveldb-devel</Dependency>
+          <Dependency versionFrom="1.18">leveldb-devel</Dependency>
           <Dependency>python-setuptools</Dependency>
         </BuildDependencies>
         <Archive sha1sum="6dfa70be59daafe73ffada429a608592d24a8d3c" type="targz">https://pypi.python.org/packages/source/p/plyvel/plyvel-0.9.tar.gz</Archive>
@@ -23,7 +23,7 @@
         <RuntimeDependencies>
           <Dependency>libgcc</Dependency>
           <Dependency>python</Dependency>
-          <Dependency>leveldb</Dependency>
+          <Dependency versionFrom="1.18">leveldb</Dependency>
         </RuntimeDependencies>
         <Files>
             <Path fileType="library">/usr/lib</Path>
@@ -31,6 +31,13 @@
         </Files>
     </Package>
     <History>
+        <Update release="4">
+            <Date>2015-08-14</Date>
+            <Version>0.9</Version>
+            <Comment>Rebuild.</Comment>
+            <Name>Ertuğrul Erata</Name>
+            <Email>ertugrulerata@gmail.com</Email>
+        </Update>
         <Update release="3">
             <Date>2015-05-17</Date>
             <Version>0.9</Version>
diff --git a/system/devel/cython/pspec.xml b/system/devel/cython/pspec.xml
index ff67028e..c3aaea51 100644
--- a/system/devel/cython/pspec.xml
+++ b/system/devel/cython/pspec.xml
@@ -13,7 +13,7 @@
         <IsA>library</IsA>
         <Summary>C extensions for the Python</Summary>
         <Description>Cython is a language that makes writing C extensions for the Python language as easy as Python itself.</Description>
-        <Archive sha1sum="85c0494968e49f4aa3d20c58c314b5dffed47886" type="targz">http://www.cython.org/release/Cython-0.22.1.tar.gz</Archive>
+        <Archive sha1sum="5a49123b39d89a20fb88bdc7886210c39cdff695" type="targz">http://www.cython.org/release/Cython-0.23.tar.gz</Archive>
         <BuildDependencies>
             <Dependency>python-devel</Dependency>
         </BuildDependencies>
@@ -32,6 +32,13 @@
     </Package>
 
     <History>
+        <Update release="8">
+            <Date>2015-08-14</Date>
+            <Version>0.23</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Ertuğrul Erata</Name>
+            <Email>ertugrulerata@gmail.com</Email>
+        </Update>
         <Update release="7">
             <Date>2015-06-22</Date>
             <Version>0.22.1</Version>