diff --git a/CHANGELOG.md b/CHANGELOG.md
index d1809abb5..7d6a41a29 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,5 @@
 # Changelog
 
-Release 5.3.0:
- - tbd
- 
 Release 5.2.1:
  - Fix COSE signature deserialization and verification, due to signum 3.12.0
 
diff --git a/conventions-vclib/src/main/resources/vcLibVersions.properties b/conventions-vclib/src/main/resources/vcLibVersions.properties
index b637ce9f6..f441f3ae8 100644
--- a/conventions-vclib/src/main/resources/vcLibVersions.properties
+++ b/conventions-vclib/src/main/resources/vcLibVersions.properties
@@ -1,5 +1,5 @@
-signum=3.12.0-SNAPSHOT
-supreme=0.6.0
+signum=3.12.0
+supreme=0.6.2
 uuid=0.8.1
 jsonpath=2.4.0
 jvm.json=20230618
diff --git a/gradle.properties b/gradle.properties
index d688e8112..067e25ab3 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -12,7 +12,7 @@ kotlin.mpp.enableCInteropCommonization=true
 kotlin.mpp.stability.nowarn=true
 kotlin.native.ignoreDisabledTargets=true
 
-artifactVersion = 5.2.1-SNAPSHOT
+artifactVersion = 5.2.1
 jdk.version=17
 
 
diff --git a/signum b/signum
index 63d6469fd..39ec6cec5 160000
--- a/signum
+++ b/signum
@@ -1 +1 @@
-Subproject commit 63d6469fd411f835fbeb7ce48b256ba6d0c51575
+Subproject commit 39ec6cec53fd72b307933aa1212e43f27632f239