diff --git a/programming/build/ninja/actions.py b/programming/build/ninja/actions.py
index ebed583e41..068b5e25d8 100644
--- a/programming/build/ninja/actions.py
+++ b/programming/build/ninja/actions.py
@@ -11,6 +11,13 @@ from pisi.actionsapi import get
 
 
 def build():
+    shelltools.system("""sed -i '/int Guess/a \
+                       int   j = 0;\
+                       char* jobs = getenv( "NINJAJOBS" );\
+                       if ( jobs != NULL ) j = atoi( jobs );\
+                       if ( j > 0 ) return j;\
+                       ' src/ninja.cc""")
+    
     shelltools.system("python configure.py --bootstrap")
     shelltools.system("asciidoc doc/manual.asciidoc")
     shelltools.system("emacs -Q --batch -f batch-byte-compile misc/ninja-mode.el")
diff --git a/programming/build/ninja/pspec.xml b/programming/build/ninja/pspec.xml
index 7766985f03..494913da8c 100644
--- a/programming/build/ninja/pspec.xml
+++ b/programming/build/ninja/pspec.xml
@@ -12,7 +12,7 @@
         <IsA>app:console</IsA>
         <Summary>Ninja is a small build system with a focus on speed.</Summary>
         <Description>Ninja is a small build system with a focus on speed.</Description>
-        <Archive sha1sum="17219deb34dd816363e37470f77ff7231509143a" type="targz">https://github.com/ninja-build/ninja/archive/v1.8.2.tar.gz</Archive>
+        <Archive sha1sum="d130e8cb7ed883125af978ec165199065e830d6a" type="targz">https://github.com/ninja-build/ninja/archive/v1.9.0.tar.gz</Archive>
         <BuildDependencies>
             <Dependency>re2c</Dependency>
             <Dependency>asciidoc</Dependency>
@@ -37,6 +37,13 @@
     </Package>
 
     <History>
+        <Update release="8">
+            <Date>2019-05-31</Date>
+            <Version>1.9.0</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Mustafa Cinasal</Name>
+            <Email>muscnsl@gmail.com</Email>
+        </Update>
         <Update release="7">
             <Date>2019-02-01</Date>
             <Version>1.8.2</Version>