diff --git a/build.gradle b/build.gradle
index 819bf6c430..ec4519ccea 100644
--- a/build.gradle
+++ b/build.gradle
@@ -100,7 +100,7 @@ subprojects {
 
     version = '5.0.1-SNAPSHOT'
     ext {
-        bouncyCastleVersion = '1.68'
+        bouncyCastleVersion = '1.69'
         commonsCodecVersion = '1.15'
         commonsCompressVersion = '1.20'
         commonsIoVersion = '2.10.0'
diff --git a/build.xml b/build.xml
index e709ae0b22..bacf083d18 100644
--- a/build.xml
+++ b/build.xml
@@ -296,10 +296,11 @@ under the License.
 
     <!-- xml signature libs - not part of the distribution -->
     <dependency prefix="dsig.xmlsec" artifact="org.apache.santuario:xmlsec:2.2.2" usage="ooxml-provided"/>
-    <dependency prefix="dsig.bouncycastle-prov" artifact="org.bouncycastle:bcprov-jdk15on:1.68" usage="ooxml-provided"/>
-    <dependency prefix="dsig.bouncycastle-pkix" artifact="org.bouncycastle:bcpkix-jdk15on:1.68" usage="ooxml-provided"/>
+    <dependency prefix="dsig.bouncycastle-prov" artifact="org.bouncycastle:bcprov-jdk15on:1.69" usage="ooxml-provided"/>
+    <dependency prefix="dsig.bouncycastle-pkix" artifact="org.bouncycastle:bcpkix-jdk15on:1.69" usage="ooxml-provided"/>
+    <dependency prefix="dsig.bouncycastle-util" artifact="org.bouncycastle:bcutil-jdk15on:1.69" usage="ooxml-provided"/>
     <!-- only used for signing the release - not used with the ooxml signatures -->
-    <dependency prefix="dsig.bouncycastle-bcpg" artifact="org.bouncycastle:bcpg-jdk15on:1.68" usage="util"/>
+    <dependency prefix="dsig.bouncycastle-bcpg" artifact="org.bouncycastle:bcpg-jdk15on:1.69" usage="util"/>
 
     <!-- svg/batik/pdf libs - not part of the distribution - move batik to its own directory because of JPMS module-path issues -->
     <dependency prefix="svg.xml-apis-ext" artifact="xml-apis:xml-apis-ext:1.3.04" usage="ooxml-batik"/>
@@ -468,6 +469,7 @@ under the License.
         <pathelement location="${dsig.xmlsec.jar}"/>
         <pathelement location="${dsig.bouncycastle-prov.jar}"/>
         <pathelement location="${dsig.bouncycastle-pkix.jar}"/>
+        <pathelement location="${dsig.bouncycastle-util.jar}"/>
     </path>
 
     <path id="ooxml.base.classpath">
@@ -691,6 +693,7 @@ under the License.
             <fileset dir="${basedir}/lib/ooxml-provided">
                 <include name="bc*-1.65.jar"/>
                 <include name="bc*-1.66.jar"/>
+                <include name="bc*-1.68.jar"/>
                 <include name="batik*.jar"/>
                 <include name="slf4j*-1.7.30.jar"/>
                 <include name="xmlsec*-2.2.1.jar"/>
@@ -742,6 +745,7 @@ under the License.
                     <available file="${forbidden.jar}"/>
                     <available file="${dsig.bouncycastle-prov.jar}"/>
                     <available file="${dsig.bouncycastle-pkix.jar}"/>
+                    <available file="${dsig.bouncycastle-util.jar}"/>
                     <available file="${dsig.xmlsec.jar}"/>
                     <available file="${main.commons-collections4.jar}"/>
                     <available file="${main.commons-math3.jar}"/>
@@ -799,6 +803,7 @@ under the License.
         <downloadfile src="${forbidden.url}" dest="${forbidden.jar}"/>
         <downloadfile src="${dsig.bouncycastle-prov.url}" dest="${dsig.bouncycastle-prov.jar}"/>
         <downloadfile src="${dsig.bouncycastle-pkix.url}" dest="${dsig.bouncycastle-pkix.jar}"/>
+        <downloadfile src="${dsig.bouncycastle-util.url}" dest="${dsig.bouncycastle-util.jar}"/>
         <downloadfile src="${dsig.xmlsec.url}" dest="${dsig.xmlsec.jar}"/>
     </target>
 
@@ -2696,6 +2701,7 @@ under the License.
             </fileset>
             <auxClasspath path="${dsig.bouncycastle-pkix.jar}" />
             <auxClasspath path="${dsig.bouncycastle-prov.jar}" />
+            <auxClasspath path="${dsig.bouncycastle-util.jar}" />
             <auxClasspath path="${dsig.xmlsec.jar}" />
             <auxClasspath path="${ooxml.xsds.jar}" />
             <auxClasspath path="${ooxml.curvesapi.jar}" />
diff --git a/maven/poi-ooxml.pom b/maven/poi-ooxml.pom
index f9b32c20de..a11cdf5a28 100644
--- a/maven/poi-ooxml.pom
+++ b/maven/poi-ooxml.pom
@@ -79,12 +79,17 @@
         <dependency>
             <groupId>org.bouncycastle</groupId>
             <artifactId>bcpkix-jdk15on</artifactId>
-            <version>1.68</version>
+            <version>1.69</version>
         </dependency>
         <dependency>
             <groupId>org.bouncycastle</groupId>
             <artifactId>bcprov-jdk15on</artifactId>
-            <version>1.68</version>
+            <version>1.69</version>
+        </dependency>
+        <dependency>
+            <groupId>org.bouncycastle</groupId>
+            <artifactId>bcutil-jdk15on</artifactId>
+            <version>1.69</version>
         </dependency>
         <dependency>
             <groupId>org.apache.santuario</groupId>
diff --git a/osgi/README.md b/osgi/README.md
index f241dc973b..d573448d14 100644
--- a/osgi/README.md
+++ b/osgi/README.md
@@ -29,7 +29,7 @@ These are required to sign or validate signed Office documents. The OSGi bundles
     
     - XML Commons Resolver: https://mvnrepository.com/artifact/xml-resolver/xml-resolver/1.2-osgi
     
-    - Bouncy Castle: https://mvnrepository.com/artifact/org.bouncycastle/bcprov-ext-jdk15on/1.68, https://mvnrepository.com/artifact/org.bouncycastle/bcpkix-jdk15on/1.68
+    - Bouncy Castle: https://mvnrepository.com/artifact/org.bouncycastle/bcprov-ext-jdk15on/1.69, https://mvnrepository.com/artifact/org.bouncycastle/bcpkix-jdk15on/1.69
 4. PDFBox and PDFBox Graphics2D  
 Required to render to PDF documents.
 The required jars can be downloaded from:
diff --git a/poi-ooxml/build.gradle b/poi-ooxml/build.gradle
index 0c6668afd8..8800b475e6 100644
--- a/poi-ooxml/build.gradle
+++ b/poi-ooxml/build.gradle
@@ -52,6 +52,7 @@ dependencies {
     api "org.apache.commons:commons-compress:${commonsCompressVersion}"
     api 'org.apache.santuario:xmlsec:2.2.2'
     api "org.bouncycastle:bcpkix-jdk15on:${bouncyCastleVersion}"
+    api "org.bouncycastle:bcutil-jdk15on:${bouncyCastleVersion}"
     api 'com.github.virtuald:curvesapi:1.06'
     implementation "org.apache.logging.log4j:log4j-api:${log4jVersion}"
 
diff --git a/sonar/ooxml/pom.xml b/sonar/ooxml/pom.xml
index 41f1523351..0157ce5e97 100644
--- a/sonar/ooxml/pom.xml
+++ b/sonar/ooxml/pom.xml
@@ -129,12 +129,17 @@
         <dependency>
             <groupId>org.bouncycastle</groupId>
             <artifactId>bcpkix-jdk15on</artifactId>
-            <version>1.68</version>
+            <version>1.69</version>
         </dependency>
         <dependency>
             <groupId>org.bouncycastle</groupId>
             <artifactId>bcprov-jdk15on</artifactId>
-            <version>1.68</version>
+            <version>1.69</version>
+        </dependency>
+        <dependency>
+            <groupId>org.bouncycastle</groupId>
+            <artifactId>bcutil-jdk15on</artifactId>
+            <version>1.69</version>
         </dependency>
         <dependency>
             <groupId>org.apache.santuario</groupId>