diff --git a/app/proprietary/build.gradle b/app/proprietary/build.gradle
index bb665f7f8..a8d3a5859 100644
--- a/app/proprietary/build.gradle
+++ b/app/proprietary/build.gradle
@@ -53,7 +53,7 @@ dependencies {
     implementation 'com.bucket4j:bucket4j_jdk17-core:8.15.0'
 
     // https://mvnrepository.com/artifact/com.bucket4j/bucket4j_jdk17
-    implementation 'org.bouncycastle:bcprov-jdk18on:1.82'
+    implementation 'org.bouncycastle:bcprov-jdk18on:1.83'
 
     implementation 'org.thymeleaf.extras:thymeleaf-extras-springsecurity5:3.1.3.RELEASE'
     api 'io.micrometer:micrometer-registry-prometheus'
diff --git a/build.gradle b/build.gradle
index 73a9b8c62..d15de0ce6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,7 +20,7 @@ ext {
     pdfboxVersion = "3.0.6"
     imageioVersion = "3.12.0"
     lombokVersion = "1.18.42"
-    bouncycastleVersion = "1.82"
+    bouncycastleVersion = "1.83"
     springSecuritySamlVersion = "6.5.6"
     openSamlVersion = "4.3.2"
     commonmarkVersion = "0.27.0"