diff --git a/science/misc/ilmbase/actions.py b/science/misc/ilmbase/actions.py
index 3771bd7830..30118d8faa 100644
--- a/science/misc/ilmbase/actions.py
+++ b/science/misc/ilmbase/actions.py
@@ -10,18 +10,22 @@ from pisi.actionsapi import shelltools
 from pisi.actionsapi import get
 
 def setup():
+    shelltools.cd("IlmBase")
     shelltools.system("./bootstrap")
     autotools.configure("--disable-static")
     
     pisitools.dosed("libtool", " -shared ", " -Wl,-O1,--as-needed -shared ")
 
 def build():
+    shelltools.cd("IlmBase")
     autotools.make()
 
 def check():
+    shelltools.cd("IlmBase")
     autotools.make("check")
 
 def install():
+    shelltools.cd("IlmBase")
     autotools.rawInstall("DESTDIR=%s" % get.installDIR())
 
-    pisitools.dodoc("AUTHORS", "ChangeLog", "COPYING", "LICENSE", "README")
+    pisitools.dodoc("README*")
diff --git a/science/misc/ilmbase/pspec.xml b/science/misc/ilmbase/pspec.xml
index 7f789bc47c..9b525150cf 100644
--- a/science/misc/ilmbase/pspec.xml
+++ b/science/misc/ilmbase/pspec.xml
@@ -12,11 +12,11 @@
         <IsA>library</IsA>
         <Summary>Several utility libraries from ILM (Industrial  Light &amp; Magic) used by OpenEXR</Summary>
         <Description>IlmBase are a set of utility libraries released by ILM, and used in their OpenEXR implementation. Included in this package you can find; libHalf (a class named Half for manipulating "half" values (16-bit floating point format) as if they were a built-in C++ data type), libIlmThread (a thread abstraction library on top of pthreads), libImath (a math library with support for matrices, 2d and 3d transformations, solvers for linear/quadratic/cubic equations and more), libIex (an exception handling library).</Description>
-        <Archive sha1sum="87df9e235eff0d10e171f15ad0e63cba05e16bce" type="targz">http://download.savannah.nongnu.org/releases/openexr/ilmbase-2.2.1.tar.gz</Archive>
+        <Archive sha1sum="29ca69ddea74aa14a580140646adeea1e0427842" type="targz">https://github.com/AcademySoftwareFoundation/openexr/archive/v2.5.3.tar.gz</Archive>
         <Patches>
-            <Patch level="1">ilmbase-2.0.1-no_undefined.patch</Patch>
+<!--             <Patch level="1">ilmbase-2.0.1-no_undefined.patch</Patch> -->
 <!--             <Patch level="0">ilmbase-IexMath.patch</Patch> -->
-            <Patch level="1">ilmbase-1.0.3-pkgconfig.patch</Patch>
+<!--             <Patch level="1">ilmbase-1.0.3-pkgconfig.patch</Patch> -->
         </Patches>
     </Source>
 
@@ -46,6 +46,13 @@
     </Package>
 
     <History>
+        <Update release="7">
+            <Date>2020-09-20</Date>
+            <Version>2.5.3</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Mustafa Cinasal</Name>
+            <Email>muscnsl@gmail.com</Email>
+        </Update>
 		<Update release="6">
             <Date>2020-01-19</Date>
             <Version>2.2.1</Version>