diff --git a/package.yml b/package.yml
--- a/package.yml
+++ b/package.yml
@@ -1,6 +1,6 @@
 name       : graph-tool
 version    : 2.27
-release    : 5
+release    : 6
 source     :
     - https://downloads.skewed.de/graph-tool/graph-tool-2.27.tar.bz2 : 4740c69720dfbebf8fb3e77057b3e6a257ccf0432cdaf7345f873247390e4313
 license    : GPL-3.0-or-later
@@ -22,6 +22,9 @@
     - matplotlib
     - python3-cairo
     - scipy
+environment: |
+    export CFLAGS="${CFLAGS/-g2/}"
+    export CXXFLAGS="${CXXFLAGS/-g2/}"
 setup      : |
     %patch -p1 < $pkgfiles/cgal-4.13.patch
 
diff --git a/pspec_x86_64.xml b/pspec_x86_64.xml
--- a/pspec_x86_64.xml
+++ b/pspec_x86_64.xml
@@ -331,15 +331,15 @@
 </Description>
         <PartOf>programming.devel</PartOf>
         <RuntimeDependencies>
-            <Dependency release="5">graph-tool</Dependency>
+            <Dependency release="6">graph-tool</Dependency>
         </RuntimeDependencies>
         <Files>
             <Path fileType="data">/usr/lib64/pkgconfig/graph-tool-py3.6.pc</Path>
         </Files>
     </Package>
     <History>
-        <Update release="5">
-            <Date>2018-10-23</Date>
+        <Update release="6">
+            <Date>2018-12-12</Date>
             <Version>2.27</Version>
             <Comment>Packaging update</Comment>
             <Name>Pierre-Yves</Name>