diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 881eed5085078330886ab99e183f7e281d11788c..8ee4b78351d06fcd9074a7bdb012bf3f1a630c71 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,12 +1,12 @@
 before_script:
   - apt-get update -qq && apt-get install -y wget bzip2 make gcc gcc-multilib time bc git
-  - wget -nv https://common-lisp.net/project/cmucl/downloads/snapshots/2017/10/cmucl-2017-10-x86-linux.tar.bz2
-  - wget -nv https://common-lisp.net/project/cmucl/downloads/snapshots/2017/10/cmucl-2017-10-x86-linux.extra.tar.bz2
+  - wget -nv https://common-lisp.net/project/cmucl/downloads/release/21c/cmucl-21c-x86-linux.tar.bz2
+  - wget -nv https://common-lisp.net/project/cmucl/downloads/release/21c/cmucl-21c-x86-linux.extra.tar.bz2
   - mkdir snapshot
-  - (cd snapshot; tar xjf ../cmucl-2017-10-x86-linux.tar.bz2; tar xjf ../cmucl-2017-10-x86-linux.extra.tar.bz2)
+  - (cd snapshot; tar xjf ../cmucl-21c-x86-linux.tar.bz2; tar xjf ../cmucl-21c-x86-linux.extra.tar.bz2)
 
 test:
   script:
-    - bin/build.sh -B boot-21c -C "" -o ./snapshot/bin/lisp
+    - bin/build.sh -C "" -o ./snapshot/bin/lisp
     - bin/make-dist.sh -I dist-linux linux-4
     - bin/run-tests.sh -l dist-linux/bin/lisp 2>&1 | tee test.log