diff --git a/libraries-security/pom.xml b/libraries-security/pom.xml
index 969f14ec43..8a6dad6da2 100644
--- a/libraries-security/pom.xml
+++ b/libraries-security/pom.xml
@@ -40,12 +40,12 @@
         </dependency>
         <dependency>
             <groupId>org.bouncycastle</groupId>
-            <artifactId>bcprov-jdk18on</artifactId>
+            <artifactId>bcprov-jdk15on</artifactId>
             <version>${bouncycastle.version}</version>
         </dependency>
         <dependency>
             <groupId>org.bouncycastle</groupId>
-            <artifactId>bcpkix-jdk18on</artifactId>
+            <artifactId>bcpkix-jdk15on</artifactId>
             <version>${bouncycastle.version}</version>
         </dependency>
         <dependency>
@@ -122,7 +122,7 @@
         <tink.version>1.2.2</tink.version>
         <cryptacular.version>1.2.2</cryptacular.version>
         <jasypt.version>1.9.2</jasypt.version>
-        <bouncycastle.version>1.76</bouncycastle.version>
+        <bouncycastle.version>1.68</bouncycastle.version>
         <jsch.version>0.1.55</jsch.version>
         <apache-mina.version>2.5.1</apache-mina.version>
         <spring-security-oauth2.version>2.4.0.RELEASE</spring-security-oauth2.version>