diff --git a/system/devel/bison/pspec.xml b/system/devel/bison/pspec.xml
index 56284732..e059a1f4 100644
--- a/system/devel/bison/pspec.xml
+++ b/system/devel/bison/pspec.xml
@@ -12,7 +12,7 @@
         <IsA>app:console</IsA>
         <Summary>A yacc-compatible parser generator</Summary>
         <Description>A yacc-compatible parser generator. Once you are proficient with Bison, you can use it to develop a wide range of language parsers, from those used in simple desk calculators to complex programming languages</Description>
-        <Archive sha1sum="8270497aad88c7dd4f2c317298c50513fb0c3c8e" type="tarxz">mirrors://gnu/bison/bison-3.0.4.tar.xz</Archive>
+        <Archive sha1sum="45e904d04d88c821df95833c4be4414ce5a47a4b" type="tarxz">mirrors://gnu/bison/bison-3.0.5.tar.xz</Archive>
         <BuildDependencies>
             <Dependency>m4</Dependency>
             <Dependency>gettext</Dependency>
@@ -40,6 +40,13 @@
     </Package>
 
     <History>
+        <Update release="5">
+            <Date>2018-11-29</Date>
+            <Version>3.0.5</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Ertuğrul Erata</Name>
+            <Email>ertugrulerata@gmail.com</Email>
+        </Update>
         <Update release="4">
             <Date>2018-07-15</Date>
             <Version>3.0.4</Version>