diff --git a/build.gradle.kts b/build.gradle.kts
index a5c7de4..e3a61a0 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,8 +1,8 @@
 import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 
 plugins {
-    kotlin("multiplatform") version "1.4.32"
-    kotlin("plugin.serialization") version "1.4.32"
+    kotlin("multiplatform") version "1.5.0"
+    kotlin("plugin.serialization") version "1.5.0"
     id("maven-publish")
     id("com.github.johnrengelman.shadow") version "5.2.0"
 }
diff --git a/gradle.properties b/gradle.properties
index 28df965..a649d87 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
 kotlin.code.style=official
-serializationVersion=1.1.0
+serializationVersion=1.2.0
 kotlin.mpp.enableGranularSourceSetsMetadata=true
 kotlin.native.enableDependencyPropagation=false
diff --git a/src/linuxX64Main/resources/Dockerfile b/src/linuxX64Main/resources/Dockerfile
index 5b95a6b..b93f727 100644
--- a/src/linuxX64Main/resources/Dockerfile
+++ b/src/linuxX64Main/resources/Dockerfile
@@ -24,9 +24,9 @@ RUN set -x \
 ###############################################################################
 
 ### Some env variables
-ENV OPENSSL_VERSION="1.1.1j"
-ENV KOTLIN_VERSION2="1.4.31"
-ENV KOTLIN_VERSION="1.4.31"
+ENV OPENSSL_VERSION="1.1.1k"
+ENV KOTLIN_VERSION2="1.5.0"
+ENV KOTLIN_VERSION="1.5.0"
 
 RUN set -x \
  && wget --no-check-certificate -O /tmp/kotlin-native-linux-${KOTLIN_VERSION}.tar.gz "https://github.com/JetBrains/kotlin/releases/download/v${KOTLIN_VERSION2}/kotlin-native-linux-${KOTLIN_VERSION}.tar.gz" \
@@ -51,16 +51,22 @@ RUN set -x \
  && cd /tmp/linuxX64/openssl-${OPENSSL_VERSION} \
  && ./Configure --prefix=$PWD/dist no-idea no-mdc2 no-rc5 no-shared linux-x86_64 \
  && make
+ && ar -x libssl.a
+ && ar -x libcrypto.a
+ && ar -qc libopenssl.a *.o
 
-RUN set -x \
- && cd /tmp/mingwX64/openssl-${OPENSSL_VERSION} \
- && ./Configure --cross-compile-prefix=x86_64-w64-mingw32- no-idea no-mdc2 no-rc5 no-shared mingw64 \
- && make
+#RUN set -x \
+# && cd /tmp/mingwX64/openssl-${OPENSSL_VERSION} \
+# && ./Configure --cross-compile-prefix=x86_64-w64-mingw32- no-idea no-mdc2 no-rc5 no-shared mingw64 \
+# && make
 
 RUN set -x \
  && cd /tmp/linuxArm32Hfp/openssl-${OPENSSL_VERSION} \
  && ./Configure no-idea no-mdc2 no-rc5 no-shared no-asm --cross-compile-prefix=arm-linux-gnueabihf- linux-armv4 \
  && make
+ && ar -x libssl.a
+ && ar -x libcrypto.a
+ && ar -qc libopenssl.a *.o
 
 COPY openssl.def /tmp/
 
diff --git a/src/linuxX64Main/resources/openssl.def b/src/linuxX64Main/resources/openssl.def
index 014d587..a1e6456 100644
--- a/src/linuxX64Main/resources/openssl.def
+++ b/src/linuxX64Main/resources/openssl.def
@@ -1,10 +1,10 @@
 headers = openssl/ssl.h openssl/err.h openssl/bio.h openssl/pem.h openssl/pkcs12.h
 headerFilter = openssl/*
 package = openssl
-staticLibraries = libssl.a libcrypto.a
-compilerOpts.linux_x64 = -I/tmp/linuxX64/openssl-1.1.1j/include
-libraryPaths.linux_x64 = /tmp/linuxX64/openssl-1.1.1j
-compilerOpts.mingw_x64 = -I/tmp/mingwX64/openssl-1.1.1j/include
-libraryPaths.mingw_x64 = /tmp/mingwX64/openssl-1.1.1j
-compilerOpts.linux_arm32_hfp = -I/tmp/linuxArm32Hfp/openssl-1.1.1j/include
-libraryPaths.linux_arm32_hfp = /tmp/linuxArm32Hfp/openssl-1.1.1j
+# TODO should be libssl.a libcrypto.a but it doesn't compile in the correct order, check resources/Dockerfile for the merge commands
+staticLibraries = libopenssl.a
+compilerOpts.linux_x64 = -I/tmp/linuxX64/openssl-1.1.1k/include
+libraryPaths.linux_x64 = /tmp/linuxX64/openssl-1.1.1k
+compilerOpts.linux_arm32_hfp = -I/tmp/linuxArm32Hfp/openssl-1.1.1k/include
+libraryPaths.linux_arm32_hfp = /tmp/linuxArm32Hfp/openssl-1.1.1k
+# For mingw_x64 check nativeInterop/openssl.def
diff --git a/src/nativeInterop/openssl-linux-arm32-hfp.klib b/src/nativeInterop/openssl-linux-arm32-hfp.klib
index 6b0faa2..ee5e5a5 100644
Binary files a/src/nativeInterop/openssl-linux-arm32-hfp.klib and b/src/nativeInterop/openssl-linux-arm32-hfp.klib differ
diff --git a/src/nativeInterop/openssl-linux-x64.klib b/src/nativeInterop/openssl-linux-x64.klib
index fd203f3..829b106 100644
Binary files a/src/nativeInterop/openssl-linux-x64.klib and b/src/nativeInterop/openssl-linux-x64.klib differ
diff --git a/src/nativeInterop/openssl-mingw-x64.klib b/src/nativeInterop/openssl-mingw-x64.klib
index 1284c22..8d612b6 100644
Binary files a/src/nativeInterop/openssl-mingw-x64.klib and b/src/nativeInterop/openssl-mingw-x64.klib differ
diff --git a/src/nativeInterop/openssl.def b/src/nativeInterop/openssl.def
index 1b73089..9e21c8b 100644
--- a/src/nativeInterop/openssl.def
+++ b/src/nativeInterop/openssl.def
@@ -4,4 +4,4 @@ package = openssl
 staticLibraries = libssl.lib libcrypto.lib
 compilerOpts.mingw_x64 = -I"C:\\Program Files\\OpenSSL-Win64\\include"
 libraryPaths.mingw_x64 = "C:\\Program Files\\OpenSSL-Win64\\lib"
-# C:\Users\39340\.konan\kotlin-native-prebuilt-windows-1.4.31\bin\cinterop.bat -def .\openssl.def -target "mingw_x64" -o openssl
+# C:\Users\39340\.konan\kotlin-native-prebuilt-windows-1.5\bin\cinterop.bat -def .\openssl.def -target "mingw_x64" -o openssl