Clojurians Log v2

how do you pin a specific CIDER version in spacemacs? I just upgraded to develop and I get

error in process sentinel: Could not start nREPL server: Downloading: cider/cider-nrepl/0.26.0-SNAPSHOT/maven-metadata.xml from clojars
Downloading: cider/cider-nrepl/0.26.0-SNAPSHOT/cider-nrepl-0.26.0-20210418.130850-4.pom from clojars
Downloading: org/clojure/clojure/maven-metadata.xml from clojars
Downloading: org/clojure/clojure/maven-metadata.xml from central
Downloading: org/clojure/clojure/maven-metadata.xml from maven-central
Error building classpath. Malformed \uxxxx encoding.
java.lang.IllegalArgumentException: Malformed \uxxxx encoding.
	at java.util.Properties.loadConvert(Properties.java:574)
	at java.util.Properties.load0(Properties.java:390)
	at java.util.Properties.load(Properties.java:341)
	at org.eclipse.aether.internal.impl.TrackingFileManager.read(TrackingFileManager.java:56)
	at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.read(DefaultUpdateCheckManager.java:511)
	at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkMetadata(DefaultUpdateCheckManager.java:250)
	at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolve(DefaultMetadataResolver.java:302)
	at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolveMetadata(DefaultMetadataResolver.java:181)
	at org.apache.maven.repository.internal.DefaultVersionResolver.resolveVersion(DefaultVersionResolver.java:213)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:282)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:229)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:207)
	at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:262)
	at clojure.tools.deps.alpha.extensions.maven$get_artifact.invokeStatic(maven.clj:122)
	at clojure.tools.deps.alpha.extensions.maven$get_artifact.invoke(maven.clj:116)
	at clojure.tools.deps.alpha.extensions.maven$eval1084$fn__1086.invoke(maven.clj:137)
	at clojure.lang.MultiFn.invoke(MultiFn.java:244)
	at clojure.tools.deps.alpha$download_libs$fn__811$fn__812.invoke(alpha.clj:462)
	at clojure.tools.deps.alpha.util.concurrent$submit_task$task__502.invoke(concurrent.clj:34)
	at clojure.lang.AFn.call(AFn.java:18)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)