diff --git a/guix-data-service/jobs/load-new-guix-revision.scm b/guix-data-service/jobs/load-new-guix-revision.scm
index e499a8b..7f00c22 100644
--- a/guix-data-service/jobs/load-new-guix-revision.scm
+++ b/guix-data-service/jobs/load-new-guix-revision.scm
@@ -561,8 +561,23 @@ WHERE job_id = $1")
               '()
               (with-time-logging (simple-format #f "getting ~A lint warnings"
                                                 name)
-                (inferior-eval-with-store inf store (lint-warnings-for-checker
-                                                     name)))))))
+                (format (current-error-port)
+                        "inferior heap size: ~a MiB~%"
+                        (round
+                         (/ (inferior-eval '(assoc-ref (gc-stats) 'heap-size) inf)
+                            (expt 2. 20))))
+
+                (let ((warnings
+                       (inferior-eval-with-store
+                        inf
+                        store
+                        (lint-warnings-for-checker name))))
+
+                  ;; Clean the cached store connections, as there are caches
+                  ;; associated with these that take up lots of memory
+                  (inferior-eval '(hash-clear! %store-table) inf)
+
+                  warnings))))))
       checkers))))
 
 (define (all-inferior-package-derivations store inf packages)