diff --git a/README.md b/README.md
index 44772fa..6d7717b 100644
--- a/README.md
+++ b/README.md
@@ -83,10 +83,10 @@ to being portable by conforming to some specification.
 
 ## Implementation support tables
 
-Notes:
+Required versions:
 
-- STklos
-  - Needed features WIP [https://github.com/Retropikzel/STklos](https://github.com/Retropikzel/STklos)
+- Guile >= 3
+- STklos > 2.10
 
 ### Primitives 1 table
 
diff --git a/dockerfiles/Dockerfile.snow-chibi-install-test b/dockerfiles/Dockerfile.snow-chibi-install-test
index f03381a..0246fc1 100644
--- a/dockerfiles/Dockerfile.snow-chibi-install-test
+++ b/dockerfiles/Dockerfile.snow-chibi-install-test
@@ -3,7 +3,7 @@ FROM debian:bookworm AS build
 RUN apt-get update && apt-get install -y wget build-essential make cmake libgc-dev zlib1g-dev libffi-dev libssl-dev git
 RUN git clone https://github.com/Retropikzel/chibi-scheme.git --branch=snow-chibi-foreign-depends
 RUN cd chibi-scheme && make PREFIX=/usr/local-other && make PREFIX=/usr/local-other install
-RUN wget https://github.com/ktakashi/sagittarius-scheme/archive/refs/tags/version_0.9.12.tar.gz && tar -xf version_0.9.12.tar.gz
+RUN wget https://github.com/ktakashi/sagittarius-scheme/releases/download/v0.9.13/sagittarius-0.9.13.tar.gz && tar -xf version_0.9.13.tar.gz
 RUN cd sagittarius-scheme-version_0.9.12 && ./dist.sh gen && mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX=/usr/local-other .. && make && make install
 
 FROM schemers/${COMPILE_R7RS}
diff --git a/dockerfiles/Dockerfile.test b/dockerfiles/Dockerfile.test
index 3476630..9dd1789 100644
--- a/dockerfiles/Dockerfile.test
+++ b/dockerfiles/Dockerfile.test
@@ -1,7 +1,7 @@
 ARG COMPILE_R7RS=chibi
 FROM schemers/sagittarius AS build
 RUN apt-get update && apt-get install -y wget build-essential make cmake libgc-dev zlib1g-dev libffi-dev libssl-dev
-RUN wget https://github.com/ktakashi/sagittarius-scheme/archive/refs/tags/version_0.9.12.tar.gz && tar -xf version_0.9.12.tar.gz
+RUN wget https://github.com/ktakashi/sagittarius-scheme/releases/download/v0.9.13/sagittarius-0.9.13.tar.gz && tar -xf version_0.9.13.tar.gz
 RUN cd sagittarius-scheme-version_0.9.12 && ./dist.sh gen && mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX=/usr/local-other .. && make && make install
 
 FROM schemers/${COMPILE_R7RS}