diff --git a/ghc-snap-core.spec b/ghc-snap-core.spec
index de2c736..8d6c668 100644
--- a/ghc-snap-core.spec
+++ b/ghc-snap-core.spec
@@ -41,6 +41,7 @@ BuildRequires:   ghc-unix-compat-prof
 BuildRequires:   ghc-unordered-containers-prof
 BuildRequires:   ghc-vector-prof
 BuildRequires:   ghc-zlib-enum-prof
+Patch1:          snap-core-0.7.0.1-mwc-random-0.11.patch
 
 %description
 %{common_description}
@@ -48,6 +49,7 @@ BuildRequires:   ghc-zlib-enum-prof
 
 %prep
 %setup -q -n %{pkg_name}-%{version}
+%patch1 -p1 -b .orig
 
 
 %build
@@ -80,8 +82,9 @@ BuildRequires:   ghc-zlib-enum-prof
 
 %changelog
 * Mon Jan 16 2012 Jens Petersen <petersen@redhat.com> - 0.7.0.1-1
-- update to 0.6.0.1 and cabal2spec-0.25.2
+- update to 0.7.0.1 and cabal2spec-0.25.2
 - add some doc files
+- allow building with mwc-random-0.11
 
 * Fri Dec 16 2011 Jens Petersen <petersen@redhat.com> - 0.6.0.1-1
 - update to 0.6.0.1
diff --git a/snap-core-0.7.0.1-mwc-random-0.11.patch b/snap-core-0.7.0.1-mwc-random-0.11.patch
new file mode 100644
index 0000000..b2cc3a2
--- /dev/null
+++ b/snap-core-0.7.0.1-mwc-random-0.11.patch
@@ -0,0 +1,11 @@
+--- snap-core-0.7.0.1/snap-core.cabal~	2011-12-23 00:50:50.000000000 +0900
++++ snap-core-0.7.0.1/snap-core.cabal	2012-01-24 10:46:00.238273623 +0900
+@@ -154,7 +154,7 @@
+     HUnit >= 1.2 && < 2,
+     MonadCatchIO-transformers >= 0.2.1 && < 0.3,
+     mtl == 2.0.*,
+-    mwc-random >= 0.10 && <0.11,
++    mwc-random >= 0.10 && <0.12,
+     old-locale,
+     old-time,
+     regex-posix <= 0.95.2,