diff --git a/multidict-4.0.0.tar.gz b/multidict-4.0.0.tar.gz
deleted file mode 100644
index 0d66911..0000000
--- a/multidict-4.0.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:b72486b3ad2b8444f7afebdafda8b111c1803e37203dfe81b7765298f2781778
-size 135103
diff --git a/multidict-4.1.0.tar.gz b/multidict-4.1.0.tar.gz
new file mode 100644
index 0000000..d7203b1
--- /dev/null
+++ b/multidict-4.1.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fb4412490324705dcd2172baa8a3ea58ae23c5f982476805cad58ae929fe2a52
+size 135223
diff --git a/python-multidict.changes b/python-multidict.changes
index 65fce94..f373268 100644
--- a/python-multidict.changes
+++ b/python-multidict.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Sat Feb 10 17:43:52 UTC 2018 - arun@gmx.de
+
+- update to version 4.1.0:
+  * Fix key casing in Pure Python implementation of CIMultiDict (PR
+    #202)
+
 -------------------------------------------------------------------
 Wed Jan 17 03:54:21 UTC 2018 - arun@gmx.de
 
diff --git a/python-multidict.spec b/python-multidict.spec
index a0cdf24..41a0046 100644
--- a/python-multidict.spec
+++ b/python-multidict.spec
@@ -20,7 +20,7 @@
 %define skip_python2 1
 %bcond_without test
 Name:           python-multidict
-Version:        4.0.0
+Version:        4.1.0
 Release:        0
 Summary:        Multidict implementation
 License:        Apache-2.0