diff --git a/GearBox.hs b/GearBox.hs
--- a/GearBox.hs
+++ b/GearBox.hs
@@ -1,9 +1,6 @@
 -- GearBox -- zooming rotating fractal gearbox demo
--- (GPL3+) 2012 Claude Heiland-Allen <claude@mathr.co.uk>
--- usage: gearbox <quality>
--- default quality is 9, useful range 6-14
--- 'f' toggles full screen, any other key to quit
--- tested with: ghc-7.0.4, ghc-7.4-rc1, ghc-7.6.1
+-- (GPL3+) 2012,2015 Claude Heiland-Allen <claude@mathr.co.uk>
+-- tested with: ghc-7.6.3, ghc-7.8.2, ghc-7.10.1~rc2
 
 {-# LANGUAGE TypeOperators #-}
 import Control.Monad (forM, forM_, replicateM)
@@ -158,7 +155,7 @@
   glMatrixMode gl_MODELVIEW
   glLoadIdentity
   glBindFramebuffer gl_FRAMEBUFFER (fbo ifs)
-  glUseProgramObject (fromIntegral $ p_shift ifs)
+  glUseProgram (fromIntegral $ p_shift ifs)
   glUniform1i (p_shift_u_t ifs) 0
   to <- fmap last $ forM (take passes . ((True, (t_source ifs, t_ping ifs)) :) .
       zip (repeat False) $ (iterate swap (t_ping ifs, t_pong ifs))) $
@@ -178,7 +175,7 @@
     glBindTexture gl_TEXTURE_2D 0
     glFramebufferTexture2D gl_FRAMEBUFFER gl_COLOR_ATTACHMENT0 gl_TEXTURE_2D 0 0
     return pong
-  glUseProgramObject 0
+  glUseProgram 0
   glBindFramebuffer gl_FRAMEBUFFER 0
   -- display the output scaled to the window
   let w = fromIntegral $ w_width  ifs
@@ -223,15 +220,15 @@
 -- compile a shader
 shader :: String -> IO (Either String GLuint)
 shader frag = do
-  p <- glCreateProgramObject
-  f <- glCreateShaderObject gl_FRAGMENT_SHADER
+  p <- glCreateProgram
+  f <- glCreateShader gl_FRAGMENT_SHADER
   withCString frag $ \s -> with s $ \src -> do
     glShaderSource (fromIntegral f) 1 (castPtr src) nullPtr
     glCompileShader (fromIntegral f)
-    glAttachObject p f
+    glAttachShader p f
     glLinkProgram (fromIntegral p)
     alloca $ \sp -> do
-      glGetObjectParameteriv (fromIntegral p) gl_OBJECT_LINK_STATUS sp
+      glGetProgramiv (fromIntegral p) gl_LINK_STATUS sp
       success <- peek sp
       if (success == 0)
         then
@@ -315,9 +312,9 @@
   glBindFramebuffer gl_FRAMEBUFFER fbo'
   glFramebufferTexture2D gl_FRAMEBUFFER gl_COLOR_ATTACHMENT0 gl_TEXTURE_2D t_source' 0
   glClear (fromIntegral gl_COLOR_BUFFER_BIT)
-  glUseProgramObject (fromIntegral p_gear')
+  glUseProgram (fromIntegral p_gear')
   unitQuad
-  glUseProgramObject 0
+  glUseProgram 0
   glFramebufferTexture2D gl_FRAMEBUFFER gl_COLOR_ATTACHMENT0 gl_TEXTURE_2D 0 0
   glBindFramebuffer gl_FRAMEBUFFER 0
   glBindTexture gl_TEXTURE_2D t_source'
diff --git a/gearbox.cabal b/gearbox.cabal
--- a/gearbox.cabal
+++ b/gearbox.cabal
@@ -1,10 +1,17 @@
 Name:                gearbox
-Version:             1.0.0.2
+Version:             1.0.0.3
 Synopsis:            zooming rotating fractal gears graphics demo
 Description:         OpenGL gearbox iterated function system.  Usage:
                      @gearbox quality@ where quality is an integer between
-                     6 and 14 (default 9).  Shaders generate a gear shape
+                     6 and 14 (default 9).  @f@ toggles full screen, any
+                     other key to quit.  Shaders generate a gear shape
                      and hue rotate succesive copies via texture feedback.
+                     .
+                     Blog post:
+                     .
+                       * <http://mathr.co.uk/blog/2012-01-12_gearbox.html>
+
+Homepage:            http://code.mathr.co.uk/gearbox
 License:             GPL-3
 License-file:        LICENSE
 Author:              Claude Heiland-Allen
@@ -12,19 +19,21 @@
 Category:            Demo
 Build-type:          Simple
 Cabal-version:       >=1.6
+
 Executable gearbox
   Main-is:             GearBox.hs
   Build-depends:
     base < 5,
-    GLUT >= 2.2 && < 2.4,
-    OpenGLRaw >= 1.3 && < 1.4,
-    Vec >= 1 && < 2
+    GLUT == 2.6.*,
+    OpenGLRaw == 2.3.*,
+    Vec == 1.0.*
+  GHC-options:         -Wall
 
 Source-repository head
   type:                git
-  location:            git://gitorious.org/maximus/gearbox.git
+  location:            http://code.mathr.co.uk/gearbox.git
 
 Source-repository this
   type:                git
-  location:            git://gitorious.org/maximus/gearbox.git
-  tag:                 v1.0.0.2
+  location:            http://code.mathr.co.uk/gearbox.git
+  tag:                 v1.0.0.3