diff --git a/CHANGES b/CHANGES
index ee1cc26fe7..3a82c76de1 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,11 @@
+7.2.0-dev.405 | 2025-03-21 09:43:18 +0100
+
+  * testing/btest: Remove btest-bg-run sleep 1 (Arne Welzel, Corelight)
+
+    Bump to the latest btest master version and set BTEST_BG_RUN_SLEEP
+    environment variable to 0. This makes btest-bg-run return
+    immediately instead of delaying by 1 second.
+
 7.2.0-dev.402 | 2025-03-19 12:47:37 -0700
 
   * util: Fix terminate_processing() called from non-main thread (Arne Welzel, Corelight)
diff --git a/VERSION b/VERSION
index 46bb8f043f..f59c9427a9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-7.2.0-dev.402
+7.2.0-dev.405
diff --git a/auxil/btest b/auxil/btest
index 9590947dc1..789eec5c2e 160000
--- a/auxil/btest
+++ b/auxil/btest
@@ -1 +1 @@
-Subproject commit 9590947dc1d4e8096af21e344311c6b1d188d197
+Subproject commit 789eec5c2e4229dc8e8a9421157d9e3327256bd8
diff --git a/testing/btest/btest.cfg b/testing/btest/btest.cfg
index dcfa0397a9..2bf145d4a7 100644
--- a/testing/btest/btest.cfg
+++ b/testing/btest/btest.cfg
@@ -20,6 +20,7 @@ ZEEK_PLUGIN_PATH=
 TZ=UTC
 LC_ALL=C
 BTEST_PATH=%(testbase)s/../../auxil/btest
+BTEST_BG_RUN_SLEEP=0
 PATH=%(testbase)s/../../%(build_dir)s/src%(pathsep)s%(testbase)s/../scripts%(pathsep)s%(testbase)s/../../auxil/btest%(pathsep)s%(testbase)s/../../%(build_dir)s/auxil/zeek-aux/zeek-cut%(pathsep)s%(testbase)s/../../%(build_dir)s/auxil/spicy/bin%(pathsep)s%(testbase)s/../../%(build_dir)s/src/spicy/spicyz%(pathsep)s%(testbase)s/../../auxil/btest/sphinx%(pathsep)s%(default_path)s%(pathsep)s/sbin
 TRACES=%(testbase)s/Traces
 FILES=%(testbase)s/Files