diff --git a/system/base/nettle/pspec.xml b/system/base/nettle/pspec.xml
index 4237d5c6..78a825c5 100644
--- a/system/base/nettle/pspec.xml
+++ b/system/base/nettle/pspec.xml
@@ -12,7 +12,7 @@
         <IsA>library</IsA>
         <Summary>The Nettle package contains the low-level cryptographic library</Summary>
         <Description>The Nettle package contains the low-level cryptographic library that is designed to fit easily in many contexts.</Description>
-        <Archive sha1sum="e7477df5f66e650c4c4738ec8e01c2efdb5d1211" type="targz">ftp://ftp.gnu.org/gnu/nettle/nettle-2.7.1.tar.gz</Archive>
+        <Archive sha1sum="1836601393522124787e029466935408e22dd204" type="targz">ftp://ftp.gnu.org/gnu/nettle/nettle-3.1.1.tar.gz</Archive>
         <BuildDependencies>
             <Dependency>gmp-devel</Dependency>
         </BuildDependencies>
@@ -66,6 +66,13 @@
     </Package>
 
     <History>
+        <Update release="6">
+            <Date>2015-07-05</Date>
+            <Version>3.1.1</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Ertuğrul Erata</Name>
+            <Email>ertugrulerata@gmail.com</Email>
+        </Update>
         <Update release="5">
             <Date>2014-05-11</Date>
             <Version>2.7.1</Version>
diff --git a/system/devel/libarchive/pspec.xml b/system/devel/libarchive/pspec.xml
index faf7e23e..ae246005 100644
--- a/system/devel/libarchive/pspec.xml
+++ b/system/devel/libarchive/pspec.xml
@@ -15,6 +15,7 @@
         <Archive sha1sum="6a991777ecb0f890be931cec4aec856d1a195489" type="targz">http://www.libarchive.org/downloads/libarchive-3.1.2.tar.gz</Archive>
         <BuildDependencies>
             <Dependency>acl-devel</Dependency>
+            <Dependency>nettle-devel</Dependency>
             <Dependency>attr-devel</Dependency>
             <Dependency>bzip2</Dependency>
             <Dependency>libxml2-devel</Dependency>
@@ -58,6 +59,13 @@
     </Package>
 
     <History>
+        <Update release="7">
+            <Date>2015-07-05</Date>
+            <Version>3.1.2</Version>
+            <Comment>Rebuild with nettle.</Comment>
+            <Name>Ertuğrul Erata</Name>
+            <Email>ertugrulerata@gmail.com</Email>
+        </Update>
         <Update release="6">
             <Date>2014-05-11</Date>
             <Version>3.1.2</Version>