diff --git a/dealer/package.json b/dealer/package.json
index 728ca529..2735abb9 100644
--- a/dealer/package.json
+++ b/dealer/package.json
@@ -50,7 +50,7 @@
     "apollo-server-errors": "^3.3.1",
     "apollo-server-express": "^3.9.0",
     "black-scholes-model": "^1.0.10",
-    "ccxt": "^1.78.5",
+    "ccxt": "1.78.5",
     "cross-fetch": "^3.1.5",
     "csv-parse": "^5.2.2",
     "dotenv": "^16.0.1",
diff --git a/yarn.lock b/yarn.lock
index bf1b5855..252f4fe1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2064,10 +2064,10 @@ caniuse-lite@^1.0.30001359:
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001363.tgz#26bec2d606924ba318235944e1193304ea7c4f15"
   integrity sha512-HpQhpzTGGPVMnCjIomjt+jvyUu8vNFo3TaDiZ/RcoTrlOq/5+tC8zHdsbgFB6MxmaY+jCpsH09aD80Bb4Ow3Sg==
 
-ccxt@^1.78.5:
-  version "1.90.29"
-  resolved "https://registry.yarnpkg.com/ccxt/-/ccxt-1.90.29.tgz#971a45ab705f82ca3d2ab3a9d7e3a0cd1576689d"
-  integrity sha512-8iyfWHtYYR8t7fzvJ3kv4/QOkg+kNMtuebmXqGMsOPnunJq3Y0RAy/mlwIKUhkwx2Ig1ywaYx06KFsfZprINwg==
+ccxt@1.78.5:
+  version "1.78.5"
+  resolved "https://registry.yarnpkg.com/ccxt/-/ccxt-1.78.5.tgz#4a4b52e382df7b3a94760724ae70ee252f200ef8"
+  integrity sha512-/0Vxc+d6TxjfkzC0NuJEDgnVZX0FyvuEsXkg4z/Umuertsh72A8qUy8nThMQUdQGEzoINjgSbCmFdoJiqfO7cQ==
 
 chalk@^2.0.0:
   version "2.4.2"