diff --git a/.gitignore b/.gitignore
index a7cc22e..ce4b91e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@
 /nextpnr-8955230.tar.gz
 /nextpnr-f0e30ab.tar.gz
 /nextpnr-e19d44e.tar.gz
+/nextpnr-fd6366f.tar.gz
diff --git a/nextpnr.spec b/nextpnr.spec
index f593478..a348ea3 100644
--- a/nextpnr.spec
+++ b/nextpnr.spec
@@ -1,11 +1,11 @@
-%global commit e19d44ee209733d203175602d34eeba953ab910b
+%global commit fd6366f027c5e9099e555f733f3092903897374d
 %global shortcommit %(c=%{commit}; echo ${c:0:7})
 
-%global snapdate 20210523
+%global snapdate 20210904
 
 Name:		nextpnr
 Version:	0
-Release:	0.24.%{snapdate}git%{shortcommit}%{?dist}
+Release:	0.25.%{snapdate}git%{shortcommit}%{?dist}
 Summary:	FPGA place and route tool
 
 License:	ISC and BSD and MIT and (MIT or Public Domain)
@@ -27,8 +27,8 @@ BuildRequires:	cmake(QtConfiguration)
 BuildRequires:	boost-python3-devel
 BuildRequires:	eigen3-devel
 # NOTE: remember to update icestorm & trellis before rebuilding nextpnr!!!
-BuildRequires:	icestorm >= 0-0.14
-BuildRequires:	trellis-devel >= 1.0-0.16
+BuildRequires:	icestorm >= 0-0.17
+BuildRequires:	trellis-devel >= 1.0-0.21
 
 # License: ISC
 Provides:	bundled(qtimgui)
@@ -84,6 +84,9 @@ cp -r ice40/examples/* examples/ice40
 
 
 %changelog
+* Sat Sep 04 2021 Gabriel Somlo <gsomlo@gmail.com> - 0-0.25.20210904gitfd6366f
+- Update to newer snapshot.
+
 * Sat Aug 07 2021 Jonathan Wakely <jwakely@redhat.com> - 0-0.24.20210523gite19d44e
 - Rebuilt for Boost 1.76
 
diff --git a/sources b/sources
index 56a508f..1b4eebf 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (nextpnr-e19d44e.tar.gz) = 4b2bf4b7c2e2c4fec892bd4f434e3612758cb603a571e05d80216f8e60df77d553700ee573075e7c1ad275f195ef57c00eb8ff1d1c3bf3aabc552ed7fdf9f06f
+SHA512 (nextpnr-fd6366f.tar.gz) = 8ccbb82e387a203d22f3989b4c3a58061be745339e6ed1bd629026ac29a7748c4e6c8225935cc7b4432a97320a46d839d3324117b2cffc371ccfa82f64bbe5ee