diff --git a/sigstore-java/build.gradle.kts b/sigstore-java/build.gradle.kts
index 02d75124..2a03f6df 100644
--- a/sigstore-java/build.gradle.kts
+++ b/sigstore-java/build.gradle.kts
@@ -36,8 +36,8 @@ dependencies {
 
     implementation("commons-codec:commons-codec:1.17.1")
     implementation("com.google.code.gson:gson:2.11.0")
-    implementation("org.bouncycastle:bcutil-jdk18on:1.78.1")
-    implementation("org.bouncycastle:bcpkix-jdk18on:1.78.1")
+    implementation("org.bouncycastle:bcutil-jdk18on:1.79")
+    implementation("org.bouncycastle:bcpkix-jdk18on:1.79")
 
     implementation(platform("com.google.oauth-client:google-oauth-client-bom:1.36.0"))
     implementation("com.google.oauth-client:google-oauth-client")
diff --git a/sigstore-maven-plugin/build.gradle.kts b/sigstore-maven-plugin/build.gradle.kts
index a6de7f91..5122495e 100644
--- a/sigstore-maven-plugin/build.gradle.kts
+++ b/sigstore-maven-plugin/build.gradle.kts
@@ -14,7 +14,7 @@ dependencies {
     compileOnly("org.apache.maven.plugin-tools:maven-plugin-annotations:3.14.0")
 
     implementation(project(":sigstore-java"))
-    implementation("org.bouncycastle:bcutil-jdk18on:1.78.1")
+    implementation("org.bouncycastle:bcutil-jdk18on:1.79")
     implementation("org.apache.maven.plugins:maven-gpg-plugin:3.2.7")
 
     testImplementation("org.apache.maven.shared:maven-verifier:1.8.0")