diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3a26f5f..77a0bb8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## v3.3.20 (2024/06/21)
+* maxTimeout should always be int
+* Check not running in Docker before logging version_main error
+* Update Cloudflare challenge and checkbox selectors. Thanks @tenettow & @21hsmw
+
 ## v3.3.19 (2024/05/23)
 * Fix occasional headless issue on Linux when set to "false". Thanks @21hsmw
 
diff --git a/Dockerfile b/Dockerfile
index 699db27..5c2d74b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -62,17 +62,17 @@ ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 CMD ["/usr/local/bin/python", "-u", "/app/flaresolverr.py"]
 
 # Local build
-# docker build -t ngosang/flaresolverr:3.3.19 .
-# docker run -p 8191:8191 ngosang/flaresolverr:3.3.19
+# docker build -t ngosang/flaresolverr:3.3.20 .
+# docker run -p 8191:8191 ngosang/flaresolverr:3.3.20
 
 # Multi-arch build
 # docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
 # docker buildx create --use
-# docker buildx build -t ngosang/flaresolverr:3.3.19 --platform linux/386,linux/amd64,linux/arm/v7,linux/arm64/v8 .
+# docker buildx build -t ngosang/flaresolverr:3.3.20 --platform linux/386,linux/amd64,linux/arm/v7,linux/arm64/v8 .
 #   add --push to publish in DockerHub
 
 # Test multi-arch build
 # docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
 # docker buildx create --use
-# docker buildx build -t ngosang/flaresolverr:3.3.19 --platform linux/arm/v7 --load .
-# docker run -p 8191:8191 --platform linux/arm/v7 ngosang/flaresolverr:3.3.19
+# docker buildx build -t ngosang/flaresolverr:3.3.20 --platform linux/arm/v7 --load .
+# docker run -p 8191:8191 --platform linux/arm/v7 ngosang/flaresolverr:3.3.20
diff --git a/package.json b/package.json
index 6cfb1f7..9315fd1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "flaresolverr",
-  "version": "3.3.19",
+  "version": "3.3.20",
   "description": "Proxy server to bypass Cloudflare protection",
   "author": "Diego Heras (ngosang / ngosang@hotmail.es)",
   "license": "MIT"