diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 37b71d3..bc9b4da 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,4 +13,4 @@ jobs:
         run: >-
           docker run -t --rm
           -v "$PWD:/yadm:ro"
-          yadm/testbed:2020-12-21
+          yadm/testbed:2020-12-29
diff --git a/Makefile b/Makefile
index 1a5cfc4..c098057 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 PYTESTS = $(wildcard test/test_*.py)
-IMAGE = yadm/testbed:2020-12-21
+IMAGE = yadm/testbed:2020-12-29
 
 .PHONY: all
 all: