diff --git a/pkg_specs/bitcoin.changelog b/pkg_specs/bitcoin.changelog
index 9277e7f..55019df 100644
--- a/pkg_specs/bitcoin.changelog
+++ b/pkg_specs/bitcoin.changelog
@@ -1,3 +1,8 @@
+bitcoin (27.1-2) buster; urgency=medium
+
+  * Improve dependency specification
+
+ -- Martin Habovstiak <martin.habovstiak@gmail.com>  Tue, 30 Jul 2024 08:56:53 +0000
 bitcoin (27.1-1) buster; urgency=medium
 
   * Updated upstream version
diff --git a/pkg_specs/bitcoind.sps b/pkg_specs/bitcoind.sps
index 966177d..b362ccb 100644
--- a/pkg_specs/bitcoind.sps
+++ b/pkg_specs/bitcoind.sps
@@ -1,7 +1,7 @@
 name = "bitcoind"
 architecture = "any"
 summary = "Bitcoin full node daemon binaries"
-conflicts = ["nbxplorer (<< 2.1.47)", "python3-lnpbp-testkit (<< 0.1.4)", "bitcoin-rpc-proxy-mainnet (<< 0.4.0-1)", "bitcoin-rpc-proxy-regtest (<< 0.4.0-1)"]
+conflicts = ["nbxplorer (<< 2.1.47)", "python3-lnpbp-testkit (<< 0.1.4)", "bitcoin-rpc-proxy-mainnet (<< 0.4.0-1)", "bitcoin-rpc-proxy-regtest (<< 0.4.0-1)", "bitcoin-timechain-mainnet (<< 0.4.0-1)", "bitcoin-timechain-regtest (<< 0.4.0-1)"]
 recommends = ["bitcoin-mainnet | bitcoin-regtest"]
 suggests = ["bitcoin-cli"]
 add_files = [