diff --git a/acme4j-utils/pom.xml b/acme4j-utils/pom.xml
index 7a95bfb3..9865b4b4 100644
--- a/acme4j-utils/pom.xml
+++ b/acme4j-utils/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>org.bouncycastle</groupId>
             <artifactId>bcprov-jdk15on</artifactId>
-            <version>${bouncycastle.version}.01</version>
+            <version>${bouncycastle.version}</version>
         </dependency>
         <dependency>
             <groupId>org.bouncycastle</groupId>
diff --git a/pom.xml b/pom.xml
index 823f13c5..544d62ab 100644
--- a/pom.xml
+++ b/pom.xml
@@ -51,9 +51,9 @@
     </developers>
 
     <properties>
-        <bouncycastle.version>1.65</bouncycastle.version>
+        <bouncycastle.version>1.66</bouncycastle.version>
         <httpclient.version>4.5.12</httpclient.version>
-        <jose4j.version>0.7.1</jose4j.version>
+        <jose4j.version>0.7.2</jose4j.version>
         <slf4j.version>1.7.30</slf4j.version>
         <project.build.sourceEncoding>utf-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>utf-8</project.reporting.outputEncoding>
@@ -191,7 +191,7 @@
         <dependency>
             <groupId>com.github.spotbugs</groupId>
             <artifactId>spotbugs-annotations</artifactId>
-            <version>4.0.3</version>
+            <version>4.1.1</version>
             <optional>true</optional>
             <exclusions>
                 <exclusion>
@@ -222,7 +222,7 @@
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
-            <version>3.3.3</version>
+            <version>3.4.6</version>
             <scope>test</scope>
         </dependency>
         <dependency>