diff --git a/hypothesis-python-3.66.0.tar.gz b/hypothesis-python-3.66.0.tar.gz
deleted file mode 100644
index 1ef631d..0000000
--- a/hypothesis-python-3.66.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:db3cd4d8ad493f9d1b1afdd650833eaeba0833bf797df16c7ea8c05a8ca1eb48
-size 518670
diff --git a/hypothesis-python-3.66.1.tar.gz b/hypothesis-python-3.66.1.tar.gz
new file mode 100644
index 0000000..9a6787d
--- /dev/null
+++ b/hypothesis-python-3.66.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4609b142680f11c556043569fec2de8e990cd8a9f34000a8f3610a9c7d78c8cb
+size 519129
diff --git a/python-hypothesis.changes b/python-hypothesis.changes
index d8c9c42..79f264a 100644
--- a/python-hypothesis.changes
+++ b/python-hypothesis.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Thu Jul 12 15:59:06 UTC 2018 - arun@gmx.de
+
+- update to version 3.66.1:
+  * This patch fixes a rare bug where an incorrect percentage drawtime
+    could be displayed for a test, when the system clock was changed
+    during a test running under Python 2 (we use time.monotonic()
+    where it is available to avoid such problems). It also fixes a
+    possible zero-division error that can occur when the underlying C
+    library double-rounds an intermediate value in math.fsum() and
+    gets the least significant bit wrong.
+
 -------------------------------------------------------------------
 Sat Jul  7 17:11:59 UTC 2018 - arun@gmx.de
 
diff --git a/python-hypothesis.spec b/python-hypothesis.spec
index e42ef27..3a34968 100644
--- a/python-hypothesis.spec
+++ b/python-hypothesis.spec
@@ -28,7 +28,7 @@
 %endif
 %bcond_without python2
 Name:           python-hypothesis
-Version:        3.66.0
+Version:        3.66.1
 Release:        0
 Summary:        A library for property based testing
 License:        MPL-2.0