diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3c23d36..116ad0c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,8 @@
 
 ## version 7.4.0-SNAPSHOT
 *Released*: TBD
-*
+* Update HttpClient5 to 5.6.4 (CVE-2026-64607)
+* Update Gradle plugins, Commons Codec, and JSONObject versions
 
 ## version 7.3.0
 *Released*: 15 July 2026
diff --git a/gradle.properties b/gradle.properties
index 14bc608..cbf976a 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -7,15 +7,15 @@ artifactory_contextUrl=https://labkey.jfrog.io/artifactory
 sourceCompatibility=17
 targetCompatibility=17
 
-gradlePluginsVersion=9.1.0
+gradlePluginsVersion=10.0.0
 
-commonsCodecVersion=1.22.0
+commonsCodecVersion=1.22.1
 commonsLoggingVersion=1.4.0
 
-httpclient5Version=5.5.2
+httpclient5Version=5.6.4
 httpcore5Version=5.4.3
 
-jsonObjectVersion=20260522
+jsonObjectVersion=20260719
 
 junitVersion=4.13.2
 
diff --git a/pull_request_template.md b/pull_request_template.md
deleted file mode 100644
index 2a1c8ac..0000000
--- a/pull_request_template.md
+++ /dev/null
@@ -1,8 +0,0 @@
-#### Rationale
-<!-- Rationale describing why this pull request is needed, what behavior it's adding/changing/removing, etc. (replace this comment) -->
-
-#### Related Pull Requests
-* <!-- list of links to related pull requests (replace this comment) -->
-
-#### Changes
-* <!-- list of descriptions of changes that are worth noting (replace this comment) -->