diff --git a/build.gradle b/build.gradle
index 5ad1e391b..0a482027b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -37,7 +37,7 @@ protobuf {
 dependencies {
     implementation "commons-codec:commons-codec:1.15"
     implementation "com.h2database:h2:1.4.200"
-    implementation "mysql:mysql-connector-java:8.0.23"
+    implementation "mysql:mysql-connector-java:8.0.21"
     implementation "org.postgresql:postgresql:42.2.18"
     implementation "com.microsoft.sqlserver:mssql-jdbc:9.2.0.jre8"
     implementation "com.zaxxer:HikariCP:4.0.1"
diff --git a/pom.xml b/pom.xml
index d22da141e..49c0895d1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -38,7 +38,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>8.0.23</version>
+            <version>8.0.21</version>
         </dependency>
         <dependency>
             <groupId>org.postgresql</groupId>