diff --git a/.gitignore b/.gitignore
index f01fa3f..fbf7599 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@
 /mingw-w64-v4.0.1.tar.bz2
 /mingw-w64-v4.0.2.tar.bz2
 /mingw-w64-v4.0.4.tar.bz2
+/mingw-w64-mingw-w64-5e2e73b7754fca77ef7635cf52c73a3885110603.zip
diff --git a/mingw-winpthreads.spec b/mingw-winpthreads.spec
index f0c3cf5..38e25b3 100644
--- a/mingw-winpthreads.spec
+++ b/mingw-winpthreads.spec
@@ -1,9 +1,9 @@
 %?mingw_package_header
 
-#%%global snapshot_date 20141222
-#%%global snapshot_rev f7337bdf0d70809e720b4e2671758e0c10c16f60
-#%%global snapshot_rev_short %(echo %snapshot_rev | cut -c1-6)
-#%%global branch trunk
+%global snapshot_date 20151224
+%global snapshot_rev 5e2e73b7754fca77ef7635cf52c73a3885110603
+%global snapshot_rev_short %(echo %snapshot_rev | cut -c1-6)
+%global branch trunk
 
 #%%global pre rc3
 
@@ -11,8 +11,8 @@
 %global enable_tests 0
 
 Name:           mingw-winpthreads
-Version:        4.0.4
-Release:        1%{?dist}
+Version:        4.9.999
+Release:        0.1.%{branch}.git%{snapshot_rev_short}.%{snapshot_date}%{?dist}
 Summary:        MinGW pthread library
 # The main license of winpthreads is MIT, but parts of this library
 # are derived from the "Posix Threads library for Microsoft Windows"
@@ -209,6 +209,9 @@ find $RPM_BUILD_ROOT -name "*.la" -delete
 
 
 %changelog
+* Thu Dec 24 2015 Erik van Pienbroek <epienbro@fedoraproject.org> - 4.9.999-0.1.trunk.git.5e2e73.20151224
+- Update to 20151224 snapshot (git rev 5e2e73)
+
 * Wed Aug  5 2015 Erik van Pienbroek <epienbro@fedoraproject.org> - 4.0.4-1
 - Update to 4.0.4
 
diff --git a/sources b/sources
index c58882c..e2bbc5c 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-d54e353670e17b54f1ac86df3bb33e31  mingw-w64-v4.0.4.tar.bz2
+21585d31b7301326c3d244ded66b4d82  mingw-w64-mingw-w64-5e2e73b7754fca77ef7635cf52c73a3885110603.zip