diff --git a/Dockerfile b/Dockerfile
index ca096d3..2c101fb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,9 +11,9 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get install texlive-generic-recommended
 
 # SBCL
 
-RUN wget -nv http://downloads.sourceforge.net/project/sbcl/sbcl/1.3.3/sbcl-1.3.3-x86-64-linux-binary.tar.bz2 \
- && tar -jxvf sbcl-1.3.3-x86-64-linux-binary.tar.bz2 \
- && cd sbcl-1.3.3-x86-64-linux \
+RUN wget -nv http://downloads.sourceforge.net/project/sbcl/sbcl/1.3.4/sbcl-1.3.4-x86-64-linux-binary.tar.bz2 \
+ && tar -jxvf sbcl-1.3.4-x86-64-linux-binary.tar.bz2 \
+ && cd sbcl-1.3.4-x86-64-linux \
  && sh install.sh
 
 # Quicklisp