diff --git a/package.json b/package.json
index b715b5e..8567741 100644
--- a/package.json
+++ b/package.json
@@ -9,11 +9,11 @@
     "build": "parcel build index.html"
   },
   "dependencies": {
-    "excalibur": "^0.24.3"
+    "excalibur": "0.24.3"
   },
   "devDependencies": {
-    "parcel": "^1.12.4",
-    "sass": "^1.26.10",
-    "typescript": "^3.9.6"
+    "parcel": "1.12.4",
+    "sass": "1.26.10",
+    "typescript": "3.9.6"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index e791e6a..64e36ca 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2217,7 +2217,7 @@ evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
     md5.js "^1.3.4"
     safe-buffer "^5.1.1"
 
-excalibur@^0.24.3:
+excalibur@0.24.3:
   version "0.24.3"
   resolved "https://registry.yarnpkg.com/excalibur/-/excalibur-0.24.3.tgz#46eb170ae9745b1ac379858b365738368310b44a"
   integrity sha512-dn1LoKmOPK4ZXkMXhFfMakcvCCDYCl+H5TV3szmnFDvlJ72L+J0ocAqhanu3YIQobehjEQjNY+Rz7KQnobI//w==
@@ -3603,7 +3603,7 @@ pako@~1.0.5:
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.11.tgz#6c9599d340d54dfd3946380252a35705a6b992bf"
   integrity sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==
 
-parcel@^1.12.4:
+parcel@1.12.4:
   version "1.12.4"
   resolved "https://registry.yarnpkg.com/parcel/-/parcel-1.12.4.tgz#c8136085179c6382e632ca98126093e110be2ac5"
   integrity sha512-qfc74e2/R4pCoU6L/ZZnK9k3iDS6ir4uHea0e9th9w52eehcAGf2ido/iABq9PBXdsIOe4NSY3oUm7Khe7+S3w==
@@ -4479,7 +4479,7 @@ safe-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
 
-sass@^1.26.10:
+sass@1.26.10:
   version "1.26.10"
   resolved "https://registry.yarnpkg.com/sass/-/sass-1.26.10.tgz#851d126021cdc93decbf201d1eca2a20ee434760"
   integrity sha512-bzN0uvmzfsTvjz0qwccN1sPm2HxxpNI/Xa+7PlUEMS+nQvbyuEK7Y0qFqxlPHhiNHb1Ze8WQJtU31olMObkAMw==
@@ -5022,7 +5022,7 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.9.6:
+typescript@3.9.6:
   version "3.9.6"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.6.tgz#8f3e0198a34c3ae17091b35571d3afd31999365a"
   integrity sha512-Pspx3oKAPJtjNwE92YS05HQoY7z2SFyOpHo9MqJor3BXAGNaPUs83CuVp9VISFkSjyRfiTpmKuAYGJB7S7hOxw==