diff --git a/api/build.gradle b/api/build.gradle
index 637e69d939..e9243087d6 100644
--- a/api/build.gradle
+++ b/api/build.gradle
@@ -128,7 +128,7 @@ dependencies {
     //DB
     compile("org.springframework:spring-jdbc")
     compile group: "org.postgresql", name: "postgresql", version: "42.1.4"
-    compile group: "com.mchange", name: "c3p0", version: "0.9.5.2"
+    compile group: "com.mchange", name: "c3p0", version: "0.9.5.4"
 
     // Logging
     compile group: "org.slf4j", name: "slf4j-api", version: "1.7.24"
diff --git a/data-transfer-service/build.gradle b/data-transfer-service/build.gradle
index a0a3afddd5..a37f226025 100644
--- a/data-transfer-service/build.gradle
+++ b/data-transfer-service/build.gradle
@@ -54,7 +54,7 @@ dependencies {
 
     // DB
     compile group: "com.h2database",    name: "h2",     version: "1.4.197"
-    compile group: "com.mchange",       name: "c3p0",   version: "0.9.5.2"
+    compile group: "com.mchange",       name: "c3p0",   version: "0.9.5.4"
 
     // Swagger
     compile group: "io.springfox", name: "springfox-swagger2",      version: swaggerVersion
diff --git a/elasticsearch-agent/gradle.properties b/elasticsearch-agent/gradle.properties
index 4e7750b526..b7fe8c7ffa 100644
--- a/elasticsearch-agent/gradle.properties
+++ b/elasticsearch-agent/gradle.properties
@@ -10,7 +10,7 @@ mapstructVersion=1.2.0.Final
 jaksonVersion=2.9.6
 shedlockVersion=3.0.0
 
-c3p0Version=0.9.5.2
+c3p0Version=0.9.5.4
 postgresqlVersion=42.1.4
 
 apacheCommonsIOVersion=2.6