diff --git a/pom.xml b/pom.xml
index 0ddbf5f..1bc28a2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -43,29 +43,29 @@
         <dependency>
             <groupId>com.microsoft.signalr</groupId>
             <artifactId>signalr</artifactId>
-            <version>8.0.12</version>
+            <version>8.0.27</version>
         </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
-            <version>5.4.3</version>
+            <version>5.6.1</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.18.3</version>
+            <version>2.21.3</version>
             <type>jar</type>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>2.0.17</version>
+            <version>2.0.18</version>
         </dependency>
         <!-- Required at compile time for SignalR event handling (GsonHubProtocol uses JsonElement) -->
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.11.0</version>
+            <version>2.14.0</version>
         </dependency>
     </dependencies>
 
@@ -77,7 +77,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.13.0</version>
+                <version>3.15.0</version>
                 <inherited>true</inherited>
                 <configuration>
                     <source>1.8</source>
@@ -106,7 +106,7 @@
             <plugin>
                 <groupId>org.sonatype.central</groupId>
                 <artifactId>central-publishing-maven-plugin</artifactId>
-                <version>0.7.0</version>
+                <version>0.10.0</version>
                 <extensions>true</extensions>
                 <configuration>
                     <publishingServerId>central</publishingServerId>
@@ -118,7 +118,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>flatten-maven-plugin</artifactId>
-                <version>1.6.0</version>
+                <version>1.7.3</version>
                 <configuration>
                     <updatePomFile>true</updatePomFile>
                     <flattenMode>ossrh</flattenMode>
@@ -162,7 +162,7 @@
             <plugin>
                 <groupId>com.github.spotbugs</groupId>
                 <artifactId>spotbugs-maven-plugin</artifactId>
-                <version>4.8.6.6</version>
+                <version>4.9.8.3</version>
                 <configuration>
                     <effort>Max</effort>
                     <threshold>Medium</threshold>
@@ -190,7 +190,7 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-source-plugin</artifactId>
-                        <version>3.3.0</version>
+                        <version>3.4.0</version>
                         <executions>
                             <execution>
                                 <id>attach-sources</id>
@@ -203,7 +203,7 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-javadoc-plugin</artifactId>
-                        <version>3.5.0</version>
+                        <version>3.12.0</version>
                         <executions>
                             <execution>
                                 <id>attach-javadocs</id>
@@ -216,7 +216,7 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-gpg-plugin</artifactId>
-                        <version>3.1.0</version>
+                        <version>3.2.8</version>
                         <executions>
                             <execution>
                                 <id>sign-artifacts</id>