diff --git a/sci b/sci
index 52ed6f4f..4faa5490 160000
--- a/sci
+++ b/sci
@@ -1 +1 @@
-Subproject commit 52ed6f4f9885d3a28b007ccf2e116d8270f35f4b
+Subproject commit 4faa54908377fbcabe6bb093eda6c66f8a637e3a
diff --git a/src/babashka/impl/clojure/core.clj b/src/babashka/impl/clojure/core.clj
index 2f32719e..83027fd7 100644
--- a/src/babashka/impl/clojure/core.clj
+++ b/src/babashka/impl/clojure/core.clj
@@ -6,39 +6,26 @@
   [_ _ & body]
   `(~'future-call (fn [] ~@body)))
 
-(def core-bindings
-  {'atom atom
-   'swap! swap!
-   'swap-vals! swap-vals!
-   'reset! reset!
-   'add-watch add-watch
-   'future-call future-call
+(def core-extras
+  {'future-call future-call
    'future (with-meta future {:sci/macro true})
    'future-cancel future-cancel
    'future-cancelled? future-cancelled?
    'future-done? future-done?
    'future? future?
-   'deref deref
    'agent agent
    'send send
    'send-off send-off
    'promise promise
    'deliver deliver
    'shutdown-agents shutdown-agents
-   'run! run!
    'slurp slurp
    'spit spit
    'pmap pmap
    'pr pr
-   'pr-str pr-str
    'prn prn
-   'prn-str prn-str
-   'print-str print-str
    'print print
    'println println
    'println-str println-str
    'flush flush
-   'ex-info ex-info
-   'ex-data ex-data
-   'read-line read-line
-   'namespace namespace})
+   'read-line read-line})
diff --git a/src/babashka/main.clj b/src/babashka/main.clj
index 5581f83e..62cce3c9 100644
--- a/src/babashka/main.clj
+++ b/src/babashka/main.clj
@@ -6,7 +6,7 @@
    [babashka.impl.System :refer [system-bindings]]
    [babashka.impl.Thread :refer [thread-bindings]]
    [babashka.impl.async :refer [async-namespace]]
-   [babashka.impl.clojure.core :refer [core-bindings]]
+   [babashka.impl.clojure.core :refer [core-extras]]
    [babashka.impl.clojure.java.io :refer [io-namespace]]
    [babashka.impl.clojure.stacktrace :refer [print-stack-trace]]
    [babashka.impl.conch :refer [conch-namespace]]
@@ -143,8 +143,7 @@ Everything after that is bound to *command-line-args*."))
       (throw (Exception. (str "File does not exist: " file))))))
 
 (def bindings
-  (merge core-bindings
-         system-bindings
+  (merge system-bindings
          file-bindings
          thread-bindings
          integer-bindings
@@ -198,7 +197,8 @@ Everything after that is bound to *command-line-args*."))
                         io clojure.java.io
                         conch me.raynes.conch.low-level
                         async clojure.core.async}
-             :namespaces {'clojure.tools.cli tools-cli-namespace
+             :namespaces {'clojure.core core-extras
+                          'clojure.tools.cli tools-cli-namespace
                           'clojure.edn {'read-string edn/read-string}
                           'clojure.java.shell {'sh shell/sh}
                           'babashka.wait {'wait-for-port wait/wait-for-port