diff --git a/kwant.rb b/kwant.rb
index be91bcc..3bc2193 100644
--- a/kwant.rb
+++ b/kwant.rb
@@ -3,7 +3,7 @@
 class Kwant < Formula
   homepage 'www.kwant-project.org'
   url 'downloads.kwant-project.org/kwant/kwant-1.0.3.tar.gz'
-  sha1 '6c195979d0b78e09dce5452fb38498c3d5847403'
+  sha256 '72112dd500c26954f478ccd3d4cc9758b29f5a91dc3326145f0e9e357e109550'
 
   depends_on 'numpy' => :python
   depends_on 'scipy' => :python
diff --git a/mumps_seq.rb b/mumps_seq.rb
index a0cba38..aea349f 100644
--- a/mumps_seq.rb
+++ b/mumps_seq.rb
@@ -3,7 +3,7 @@
 class MumpsSeq < Formula
   homepage 'http://graal.ens-lyon.fr/MUMPS/'
   url 'http://mumps.enseeiht.fr/MUMPS_4.10.0.tar.gz'
-  sha1 '904b1d816272d99f1f53913cbd4789a5be1838f7'
+  sha256 'd0f86f91a74c51a17a2ff1be9c9cee2338976f13a6d00896ba5b43a5ca05d933'
 
   depends_on 'scotch5'
   depends_on 'metis4'
diff --git a/tinyarray.rb b/tinyarray.rb
index 98af4e8..92a1996 100644
--- a/tinyarray.rb
+++ b/tinyarray.rb
@@ -3,7 +3,7 @@
 class Tinyarray < Formula
   homepage 'kwant-project.org'
   url 'http://downloads.kwant-project.org/tinyarray/tinyarray-1.0.2.tar.gz'
-  sha1 '953c102dabb7fbc28d3def8da4184e8cf9663995'
+  sha256 'e196f56268c0b24254621fee12633632a8a33d1a3a1ad8742a8d8232810ee840'
 
   depends_on :python