diff --git a/.gitignore b/.gitignore
index b98fa9e..95f9fff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,4 @@ findlib-1.2.5.tar.gz
 /findlib-1.8.0.tar.gz
 /findlib-1.8.1.tar.gz
 /findlib-1.9.tar.gz
+/findlib-1.9.1.tar.gz
diff --git a/ocaml-findlib.spec b/ocaml-findlib.spec
index 22da461..ca41365 100644
--- a/ocaml-findlib.spec
+++ b/ocaml-findlib.spec
@@ -1,6 +1,6 @@
 Name:           ocaml-findlib
-Version:        1.9
-Release:        3%{?dist}
+Version:        1.9.1
+Release:        1%{?dist}
 Summary:        Objective CAML package manager and build helper
 License:        BSD
 
@@ -38,9 +38,6 @@ developing applications that use %{name}.
 %prep
 %setup -q -n findlib-%{version}
 
-# Stray backslash in findlib 1.9.  Fix sent upstream 2021-03-15.
-sed -i -e 's/\(test.*camlp4.*\) \\$/\1/' Makefile
-
 
 %build
 ocamlc -version
@@ -102,6 +99,9 @@ make install \
 
 
 %changelog
+* Mon Oct 04 2021 Richard W.M. Jones <rjones@redhat.com> - 1.9.1-1
+- New upstream development version 1.9.1
+
 * Tue Jul 27 2021 Richard W.M. Jones <rjones@redhat.com> - 1.9-3
 - Rebuild for changed ocamlx(Dynlink)
 
diff --git a/sources b/sources
index 96b622a..bcd94f6 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (findlib-1.9.tar.gz) = b2084ef88d514cdec1ea988487f23ea006189031ff2eddf1d2f2e96db0f164856929475fbd8b5f6cf3844e8b3f0fba2aa8b7846174f1a1d815ce459eda3b661f
+SHA512 (findlib-1.9.1.tar.gz) = 83a05f3e310fa7cabb0475c5525f7a87c1b6bc2dc5e39f094cabfb5d944a826a5581844ba00ec1a48dd96184eb9de3c4d1055cdddee2b83c700a2de5a6dc6f84