diff --git a/gradle.properties b/gradle.properties
index 4131209..0e8c535 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,20 +1,19 @@
 group = org.xbib
 name = netty-http
-version = 4.1.50.3
+version = 4.1.51.0
 
 gradle.wrapper.version = 6.4.1
-netty.version = 4.1.50.Final
+netty.version = 4.1.51.Final
 tcnative.version = 2.0.31.Final
-tcnative-legacy-macosx.version = 2.0.31.Final
 xbib.net.version = 2.1.0
-bouncycastle.version = 1.64
+bouncycastle.version = 1.66
 reactivestreams.version = 1.0.2
 xbib-guice.version = 4.0.4
 reactivex.version = 1.3.8
-conscrypt.version = 2.2.1
-jackson.version = 2.11.0
-mockito.version = 3.3.3
-asciidoclet.version = 1.5.6
+conscrypt.version = 2.4.0
+javassist.version = 3.27.0-GA
+jackson.version = 2.11.1
+mockito.version = 3.4.4
 # uuhh, too many tests to update to jupiter in rx...
 junit.version = 5.6.2
 junit4.version = 4.13
diff --git a/netty-http-client/build.gradle b/netty-http-client/build.gradle
index 92c4019..3f92b9f 100644
--- a/netty-http-client/build.gradle
+++ b/netty-http-client/build.gradle
@@ -1,4 +1,3 @@
-import org.apache.tools.ant.taskdefs.condition.Os
 
 dependencies {
     api project(":netty-http-client-api")
@@ -6,9 +5,5 @@ dependencies {
     testImplementation "com.fasterxml.jackson.core:jackson-databind:${project.property('jackson.version')}"
     testImplementation "org.conscrypt:conscrypt-openjdk-uber:${project.property('conscrypt.version')}"
     testRuntimeOnly "org.bouncycastle:bcpkix-jdk15on:${project.property('bouncycastle.version')}"
-    if (Os.isFamily(Os.FAMILY_MAC)) {
-        testRuntimeOnly "io.netty:netty-tcnative-boringssl-static:${project.property('tcnative-legacy-macosx.version')}"
-    } else if (Os.isFamily(Os.FAMILY_UNIX)) {
-        testRuntimeOnly "io.netty:netty-tcnative-boringssl-static:${project.property('tcnative.version')}"
-    }
+    testRuntimeOnly "io.netty:netty-tcnative-boringssl-static:${project.property('tcnative.version')}"
 }
diff --git a/netty-http-server/build.gradle b/netty-http-server/build.gradle
index d90f9c1..e887bcf 100644
--- a/netty-http-server/build.gradle
+++ b/netty-http-server/build.gradle
@@ -1,13 +1,9 @@
-import org.apache.tools.ant.taskdefs.condition.Os
 
 dependencies {
     api project(":netty-http-server-api")
     testImplementation project(":netty-http-client")
     testImplementation project(":netty-http-bouncycastle")
+    testRuntimeOnly "org.javassist:javassist:${project.property('javassist.version')}"
     testRuntimeOnly "org.bouncycastle:bcpkix-jdk15on:${project.property('bouncycastle.version')}"
-    if (Os.isFamily(Os.FAMILY_MAC)) {
-        testRuntimeOnly "io.netty:netty-tcnative-boringssl-static:${project.property('tcnative-legacy-macosx.version')}"
-    } else if (Os.isFamily(Os.FAMILY_UNIX)) {
-        testRuntimeOnly "io.netty:netty-tcnative-boringssl-static:${project.property('tcnative.version')}"
-    }
+    testRuntimeOnly "io.netty:netty-tcnative-boringssl-static:${project.property('tcnative.version')}"
 }