diff --git a/CHANGELOG.md b/CHANGELOG.md
index 75e92404..3f76fa85 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@ Until May 2022 (inclusive) no changelog was kept. We might try to reconstruct it
 
 ### Changed
 
+* ZeroMQ: Update to v4.3.6
 * python: Require at least 3.12.12 in prefer_system_check
 * ROOT: Update to 6.36.08
 * defaults-actstracking: Removed all overrides unrelated to ACTS or C++20.
diff --git a/zeromq.sh b/zeromq.sh
index 9364beb9..c1c183f0 100644
--- a/zeromq.sh
+++ b/zeromq.sh
@@ -1,5 +1,5 @@
 package: ZeroMQ
-version: v4.3.5
+version: v4.3.6
 source: https://github.com/zeromq/libzmq
 requires:
   - "GCC-Toolchain:(?!osx)"