diff --git a/system/base/libunistring/pspec.xml b/system/base/libunistring/pspec.xml
index 6e5854b9..de5dc577 100644
--- a/system/base/libunistring/pspec.xml
+++ b/system/base/libunistring/pspec.xml
@@ -3,7 +3,7 @@
 <PISI>
     <Source>
         <Name>libunistring</Name>
-        <Homepage>http://www.gnu.org/software/libunistring</Homepage>
+        <Homepage>https://www.gnu.org/software/libunistring</Homepage>
         <Packager>
             <Name>PisiLinux Community</Name>
             <Email>admins@pisilinux.org</Email>
@@ -14,11 +14,14 @@
         <Summary>Unicode string library</Summary>
         <Description>This library provides functions for manipulating Unicode strings and for manipulating C strings according to the Unicode standard.</Description>
         <Archive sha1sum="1e7493a3ad8c4a1e514600b768c7229576fe5125" type="targz">mirrors://gnu/libunistring/libunistring-0.9.10.tar.gz</Archive>
-		<Patches>
-			<Patch level="1">0100-float-endian-detection.patch</Patch>
-			<Patch level="1">0700-multiarch-libc.patch</Patch>
-			<Patch level="1">0705-gcc-9.patch</Patch>
-		</Patches>
+        <BuildDependencies>
+            <Dependency versionFrom="8.0.1">readline-devel</Dependency>
+        </BuildDependencies>
+        <Patches>
+            <Patch level="1">0100-float-endian-detection.patch</Patch>
+            <Patch level="1">0700-multiarch-libc.patch</Patch>
+            <Patch level="1">0705-gcc-9.patch</Patch>
+        </Patches>
     </Source>
 
     <Package>
@@ -43,7 +46,7 @@
     </Package>
 
     <History>
-		<Update release="5">
+        <Update release="5">
             <Date>2019-12-11</Date>
             <Version>0.9.10</Version>
             <Comment>Version bump</Comment>
@@ -79,4 +82,4 @@
             <Email>alihan@pisilinux.org</Email>
         </Update>
     </History>
-</PISI>
+</PISI>
\ No newline at end of file