diff --git a/python/requirements.txt b/python/requirements.txt
index 07be98b..3099ced 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -1,2 +1,2 @@
-chainlib~=0.0.1a28
-crypto-dev-signer~=0.4.14a5
+chainlib~=0.0.1a36
+crypto-dev-signer~=0.4.14a11
diff --git a/python/setup.cfg b/python/setup.cfg
index d335c2a..1eda8eb 100644
--- a/python/setup.cfg
+++ b/python/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = sarafu-token
-version = 0.0.1a2
+version = 0.0.1a4
 description = ERC20 token with redistributed continual demurrage
 author = Louis Holbrook
 author_email = dev@holbrook.no
@@ -27,8 +27,8 @@ packages =
 	sarafu_token
 	sarafu_token.runnable.legacy
 install_requires =
-	chainlib~=0.0.1a7
-	crypto-dev-signer~=0.4.13rc2
+	chainlib~=0.0.2a1
+	crypto-dev-signer~=0.4.14a17
 	web3==5.12.2
 
 [options.package_data]