diff --git a/backend/build.gradle b/backend/build.gradle
index 9744cbf84..180630e68 100644
--- a/backend/build.gradle
+++ b/backend/build.gradle
@@ -156,7 +156,7 @@ dependencies {
     runtimeOnly 'org.glassfish.jaxb:jaxb-runtime:2.3.0'
 
     compile "com.h2database:h2"
-    runtimeOnly "org.postgresql:postgresql"
+    runtimeOnly "org.postgresql:postgresql:42.2.20"
     runtimeOnly 'org.mariadb.jdbc:mariadb-java-client:2.2.0'
     runtimeOnly 'mysql:mysql-connector-java:5.1.48'
 
diff --git a/gradle.properties b/gradle.properties
index ca31f82be..056038aae 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -7,7 +7,7 @@ opensaml.version=3.4.3
 
 spring-boot.version=2.4.2
 
-hibernate.version=5.3.14.Final
+hibernate.version=5.5.0.Final
 
 lucene.version=8.1.1
 
diff --git a/testbed/postgres/conf/.gitignore b/testbed/postgres/conf/.gitignore
new file mode 100644
index 000000000..f3e10820d
--- /dev/null
+++ b/testbed/postgres/conf/.gitignore
@@ -0,0 +1 @@
+/charles.yml