diff --git a/gdbm-1.19.tar.gz b/gdbm-1.19.tar.gz
deleted file mode 100644
index 36e5700..0000000
--- a/gdbm-1.19.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:37ed12214122b972e18a0d94995039e57748191939ef74115b1d41d8811364bc
-size 967861
diff --git a/gdbm-1.19.tar.gz.sig b/gdbm-1.19.tar.gz.sig
deleted file mode 100644
index c8dc7b7..0000000
--- a/gdbm-1.19.tar.gz.sig
+++ /dev/null
@@ -1,7 +0,0 @@
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-Version: GnuPG v1
-
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-BeMAnjAhLHtoG+n2o3ifdMWgYkSW/+dw
-=7MA5
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diff --git a/gdbm-1.20.tar.gz b/gdbm-1.20.tar.gz
new file mode 100644
index 0000000..62dd000
--- /dev/null
+++ b/gdbm-1.20.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3aeac05648b3482a10a2da986b9f3a380a29ad650be80b9817a435fb8114a292
+size 987628
diff --git a/gdbm-1.20.tar.gz.sig b/gdbm-1.20.tar.gz.sig
new file mode 100644
index 0000000..63bbaca
--- /dev/null
+++ b/gdbm-1.20.tar.gz.sig
@@ -0,0 +1,7 @@
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v1
+
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+EhwAoIPOnWpnx/PVewnu2QqDh5w/DBHa
+=U7eB
+-----END PGP SIGNATURE-----
diff --git a/gdbm-no-build-date.patch b/gdbm-no-build-date.patch
index 2129010..0dfbcb1 100644
--- a/gdbm-no-build-date.patch
+++ b/gdbm-no-build-date.patch
@@ -1,11 +1,11 @@
-Index: gdbm-1.19/src/version.c
+Index: gdbm-1.20/src/version.c
 ===================================================================
---- gdbm-1.19.orig/src/version.c	2020-12-28 14:02:20.065391921 +0100
-+++ gdbm-1.19/src/version.c	2020-12-28 14:03:54.389977011 +0100
-@@ -25,9 +25,6 @@
+--- gdbm-1.20.orig/src/version.c	2021-08-09 16:11:00.444941421 +0200
++++ gdbm-1.20/src/version.c	2021-08-09 16:11:18.649067219 +0200
+@@ -24,9 +24,6 @@
     making the distdir. */
  const char * gdbm_version = "GDBM version " PACKAGE_VERSION ". "
- "23/12/2020"
+ "17/06/2021"
 -#if defined(__STDC__) && defined(__DATE__) && defined(__TIME__)
 -		" (built " __DATE__ " " __TIME__ ")"
 -#endif
diff --git a/gdbm.changes b/gdbm.changes
index f9580b1..23afb17 100644
--- a/gdbm.changes
+++ b/gdbm.changes
@@ -1,3 +1,21 @@
+-------------------------------------------------------------------
+Mon Aug  9 14:12:45 UTC 2021 - pgajdos@suse.com
+
+- version update to 1.20
+  * New bucket cache
+    The bucket cache support has been rewritten from scratch.  The new
+    bucket cache code provides for significant speed up of search
+    operations.
+  * Change mmap prereading strategy
+    Pre-reading of the memory mapper regions, introduced in version 1.19
+    can be advantageous only when doing intensive look-ups on a read-only
+    database.  It degrades performance otherwise, especially if doing
+    multiple inserts.  Therefore, this version introduces a new flag
+    to gdbm_open: GDBM_PREREAD.  When given, it enables pre-reading of
+    memory mapped regions.
+- modified patches
+  % gdbm-no-build-date.patch (refreshed)
+
 -------------------------------------------------------------------
 Mon Dec 28 13:27:28 UTC 2020 - pgajdos@suse.com
 
diff --git a/gdbm.spec b/gdbm.spec
index ff9fecb..8063d7e 100644
--- a/gdbm.spec
+++ b/gdbm.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package gdbm
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -19,7 +19,7 @@
 %define lname	libgdbm6
 %define lcompat libgdbm_compat4
 Name:           gdbm
-Version:        1.19
+Version:        1.20
 Release:        0
 Summary:        GNU dbm key/data database
 License:        GPL-3.0-or-later
@@ -97,7 +97,7 @@ Requires:       %{lcompat} = %{version}
 Requires:       %{lname} = %{version}
 %if "%{install_info_prereq}" != ""
 Requires(pre):  %{install_info_prereq}
-Requires(preun): %{install_info_prereq}
+Requires(preun):%{install_info_prereq}
 %endif
 
 %description devel