diff --git a/src/propeller/problems/PSB2/basement.cljc b/src/propeller/problems/PSB2/basement.cljc
index 476d78e..608d4f3 100644
--- a/src/propeller/problems/PSB2/basement.cljc
+++ b/src/propeller/problems/PSB2/basement.cljc
@@ -6,8 +6,7 @@
             [propeller.push.utils.helpers :refer [get-stack-instructions]]
             [propeller.push.state :as state]
             [clojure.pprint :as pprint]
-            [propeller.tools.math :as math]
-            [psb2.core :as psb2]))
+            [propeller.tools.math :as math]))
 
 ; ===========  PROBLEM DESCRIPTION  ============================
 ; BASEMENT from PSB2
diff --git a/src/propeller/problems/PSB2/bouncing_balls.cljc b/src/propeller/problems/PSB2/bouncing_balls.cljc
index 1fa5735..1a4f053 100644
--- a/src/propeller/problems/PSB2/bouncing_balls.cljc
+++ b/src/propeller/problems/PSB2/bouncing_balls.cljc
@@ -6,8 +6,7 @@
             [propeller.push.utils.helpers :refer [get-stack-instructions]]
             [propeller.push.state :as state]
             [clojure.pprint :as pprint]
-            [propeller.tools.math :as math]
-            [psb2.core :as psb2]))
+            [propeller.tools.math :as math]))
 
 ; ===========  PROBLEM DESCRIPTION  ===============================
 ; BOUNCING BALLS from PSB2
diff --git a/src/propeller/problems/PSB2/bowling.cljc b/src/propeller/problems/PSB2/bowling.cljc
index f9aa3ff..f0cdbc9 100644
--- a/src/propeller/problems/PSB2/bowling.cljc
+++ b/src/propeller/problems/PSB2/bowling.cljc
@@ -6,8 +6,7 @@
             [propeller.push.utils.helpers :refer [get-stack-instructions]]
             [propeller.push.state :as state]
             [clojure.pprint :as pprint]
-            [propeller.tools.math :as math]
-            [psb2.core :as psb2]))
+            [propeller.tools.math :as math]))
 
 ; ===========  PROBLEM DESCRIPTION  ======================
 ; BOWLING from PSB2
diff --git a/src/propeller/problems/PSB2/camel_case.cljc b/src/propeller/problems/PSB2/camel_case.cljc
index 6fa9904..599cbe8 100644
--- a/src/propeller/problems/PSB2/camel_case.cljc
+++ b/src/propeller/problems/PSB2/camel_case.cljc
@@ -6,8 +6,7 @@
             [propeller.push.utils.helpers :refer [get-stack-instructions]]
             [propeller.push.state :as state]
             [propeller.tools.math :as math]
-            [propeller.tools.metrics :as metrics]
-            [psb2.core :as psb2]))
+            [propeller.tools.metrics :as metrics]))
 
 ; ===========  PROBLEM DESCRIPTION  =====================================
 ; CAMEL CASE from PSB2