diff --git a/releases/signatures.txt b/releases/signatures.txt
index 78c63b75..ab461f4e 100644
--- a/releases/signatures.txt
+++ b/releases/signatures.txt
@@ -2,7 +2,7 @@
 Hash: SHA256
 
 6e376290cd6b0ccc13c8f90292f3d75dafb7a14df77d6d2711cb776cdcf14668  ChangeLog.md
-522966adef0e91c536e85ab7775ee81e30b3403fa2bd33b00670b8923700a014  2021-03-17T1720-v4.0.0-coldcard.dfu
+a9bea2f7ebd5d196bb9fbb4b940fb3da05d0c25db8be9057bafea3d0d3fcbadb  2021-03-17T1724-v4.0.0-coldcard.dfu
 3097fa3c173247637aa27376036e384940adeb67ce727c9795471f46deaa5210  2021-01-14T1617-v3.2.2-coldcard.dfu
 9e4aeee48d4399a761fec5d4c65cb2495ef5bc0b46995c085d63a65cf67362cb  2021-01-07T1439-v3.2.1-coldcard.dfu
 ac756e8f90d7cdc706fb24a1358585780c0105329e95d0095d91d48579caa5a1  2020-08-06T1722-v3.1.9-coldcard.dfu
@@ -18,12 +18,12 @@ d655c51f0757c84e293daf42ee88eba0bcd66cefb148cb4c18097c323547c874  2020-02-27T135
 bea27f263b524a66b3ed0a58c16805e98be0d7c3db20c2f7aab3238f2c6a6995  2019-12-19T1623-v3.0.6-coldcard.dfu
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