diff --git a/README.md b/README.md
index ea5a0f42..9aac0d72 100644
--- a/README.md
+++ b/README.md
@@ -1026,16 +1026,15 @@ scala -classpath target/scala*/classes stepX_YYY
 
 ### Scheme (R7RS) ###
 
-The Scheme implementation of mal has been tested with Chibi-Scheme
-0.7.3, Kawa 2.4, Gauche 0.9.5, CHICKEN 4.11.0, Sagittarius 0.8.3,
-Cyclone 0.6.3 (Git version) and Foment 0.4 (Git version).  You should
+The Scheme implementation of MAL has been tested with Chibi-Scheme
+0.10, Kawa 3.1.1, Gauche 0.9.6, CHICKEN 5.1.0, Sagittarius 0.9.7,
+Cyclone 0.32.0 (Git version) and Foment 0.4 (Git version).  You should
 be able to get it running on other conforming R7RS implementations
 after figuring out how libraries are loaded and adjusting the
 `Makefile` and `run` script accordingly.
 
 ```
 cd impls/scheme
-make symlinks
 # chibi
 scheme_MODE=chibi ./run
 # kawa
diff --git a/impls/scheme/Dockerfile b/impls/scheme/Dockerfile
index 70113dd6..dc038ef3 100644
--- a/impls/scheme/Dockerfile
+++ b/impls/scheme/Dockerfile
@@ -24,33 +24,31 @@ WORKDIR /mal
 # Prepackaged Scheme implementations
 RUN apt-get -y install gauche chicken-bin
 RUN chicken-install r7rs
+# Dev tools
+RUN apt-get -y install gcc g++ bison flex groff make cmake pkg-config git
 
 # Chibi
-RUN apt-get -y install bison gcc g++ flex
-RUN cd /tmp && curl -Lo chibi-0.7.3.tar.gz https://github.com/ashinn/chibi-scheme/archive/0.7.3.tar.gz \
-    && tar xvzf chibi-0.7.3.tar.gz && cd chibi-scheme-0.7.3 \
+RUN cd /tmp && curl -Lo chibi-0.10.tar.gz https://github.com/ashinn/chibi-scheme/archive/0.10.tar.gz \
+    && tar xvzf chibi-0.10.tar.gz && cd chibi-scheme-0.10 \
     && make && make install && rm -rf /tmp/chibi-*
 
 # Kawa
-RUN apt-get -y install openjdk-8-jdk-headless groff
-RUN cd /tmp && curl -O http://ftp.gnu.org/pub/gnu/kawa/kawa-2.4.tar.gz \
-    && tar xvzf kawa-2.4.tar.gz && cd kawa-2.4 \
-    && ./configure && make && make install && rm -rf /tmp/kawa-2.4*
+RUN apt-get -y install openjdk-8-jdk-headless
+RUN cd /tmp && curl -O http://ftp.gnu.org/pub/gnu/kawa/kawa-3.1.1.tar.gz \
+    && tar xvzf kawa-3.1.1.tar.gz && cd kawa-3.1.1 \
+    && ./configure && make && make install && rm -rf /tmp/kawa-3.1.1*
 
 # Sagittarius
-RUN apt-get -y install cmake libgc-dev zlib1g-dev libffi-dev
-RUN cd /tmp && curl -LO https://bitbucket.org/ktakashi/sagittarius-scheme/downloads/sagittarius-0.8.3.tar.gz \
-    && tar xvzf sagittarius-0.8.3.tar.gz && cd sagittarius-0.8.3 \
-    && cmake . && make && make install && rm -rf /tmp/sagittarius-0.8.3*
+RUN apt-get -y install libgc-dev zlib1g-dev libffi-dev libssl-dev
+RUN cd /tmp && curl -LO https://bitbucket.org/ktakashi/sagittarius-scheme/downloads/sagittarius-0.9.7.tar.gz \
+    && tar xvzf sagittarius-0.9.7.tar.gz && cd sagittarius-0.9.7 \
+    && cmake . && make && make install && rm -rf /tmp/sagittarius-0.9.7*
 
 # Cyclone
-RUN apt-get -y install git libtommath-dev
-RUN cd /tmp && curl -O http://concurrencykit.org/releases/ck-0.6.0.tar.gz \
-    && tar xvzf ck-0.6.0.tar.gz && cd ck-0.6.0 && ./configure PREFIX=/usr \
-    && make all && make install && ldconfig && rm -rf /tmp/ck-0.6.0*
+RUN apt-get -y install libck-dev libtommath-dev
 RUN cd /tmp && git clone https://github.com/justinethier/cyclone-bootstrap \
-    && cd cyclone-bootstrap && make CFLAGS="-O2 -fPIC -rdynamic -Wall -Iinclude -L." \
-    && make install && rm -rf /tmp/cyclone-bootstrap
+    && cd cyclone-bootstrap \
+    && make && make install && rm -rf /tmp/cyclone-bootstrap
 
 # Foment
 RUN cd /tmp && git clone https://github.com/leftmike/foment \