diff --git a/python-txaio.changes b/python-txaio.changes
index c91e471..405c897 100644
--- a/python-txaio.changes
+++ b/python-txaio.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue Mar  2 00:23:51 UTC 2021 - Dirk Müller <dmueller@suse.com>
+
+- update to 21.2.1:
+  - fix: update minimum dependencies (here, and in other crossbar packages) in an
+    attempt to tame the new pip dep resolver madness.
+
 -------------------------------------------------------------------
 Mon Jan 18 00:21:11 UTC 2021 - Benjamin Greiner <code@bnavigator.de>
 
diff --git a/python-txaio.spec b/python-txaio.spec
index eb2620e..3f15bf2 100644
--- a/python-txaio.spec
+++ b/python-txaio.spec
@@ -19,7 +19,7 @@
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
 %define skip_python2 1
 Name:           python-txaio
-Version:        20.12.1
+Version:        21.2.1
 Release:        0
 Summary:        WebSocket and WAMP in Python for Twisted and asyncio
 License:        MIT
@@ -33,12 +33,12 @@ BuildRequires:  %{python_module testsuite}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 Recommends:     python-Twisted >= 20.3.0
-Recommends:     python-zope.interface >= 3.6
+Recommends:     python-zope.interface >= 5.2
 BuildArch:      noarch
 # SECTION test requirements
 BuildRequires:  %{python_module Twisted >= 20.3.0}
 BuildRequires:  %{python_module pytest}
-BuildRequires:  %{python_module zope.interface >= 3.6}
+BuildRequires:  %{python_module zope.interface >= 5.2}
 # /SECTION
 %python_subpackages
 
diff --git a/txaio-20.12.1.tar.gz b/txaio-20.12.1.tar.gz
deleted file mode 100644
index d44f053..0000000
--- a/txaio-20.12.1.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:1488d31d564a116538cc1265ac3f7979fb6223bb5a9e9f1479436ee2c17d8549
-size 53200
diff --git a/txaio-21.2.1.tar.gz b/txaio-21.2.1.tar.gz
new file mode 100644
index 0000000..fe213fc
--- /dev/null
+++ b/txaio-21.2.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7d6f89745680233f1c4db9ddb748df5e88d2a7a37962be174c0fd04c8dba1dc8
+size 53383