diff --git a/vendor/python.webconcurrency.sh b/vendor/python.webconcurrency.sh
index b53fe5b23bf42bc47dd888aa3e00b7db29bd905e..30bbe6ed0b17790d82cdf3e52cfd1e8250e21075 100755
--- a/vendor/python.webconcurrency.sh
+++ b/vendor/python.webconcurrency.sh
@@ -12,10 +12,16 @@ case $(ulimit -u) in
   export WEB_CONCURRENCY=${WEB_CONCURRENCY:-4}
   ;;
 
+# IX DYNO
+32767)
+  export DYNO_RAM=2560
+  export WEB_CONCURRENCY=${WEB_CONCURRENCY:-8}
+  ;;
+
 # PX DYNO
 32768)
-  export DYNO_RAM=6144
-  export WEB_CONCURRENCY=${WEB_CONCURRENCY:-9}
+  export DYNO_RAM=6656
+  export WEB_CONCURRENCY=${WEB_CONCURRENCY:-11}
   ;;
 
 esac