diff --git a/package.json b/package.json
index efd9fe8cb3..d4201e317a 100644
--- a/package.json
+++ b/package.json
@@ -123,7 +123,7 @@
     "lit-html": "^1.1.1",
     "npm-run-all": "^4.1.5",
     "patch-package": "^6.1.2",
-    "semver": "^7.1.1",
+    "semver": "^6.3.1",
     "shelljs": "^0.8.4",
     "sort-package-json": "^1.31.0",
     "typescript": "^3.5.3"
diff --git a/packages/build-tools/package.json b/packages/build-tools/package.json
index 5c0d21ede9..5c57cd1618 100644
--- a/packages/build-tools/package.json
+++ b/packages/build-tools/package.json
@@ -91,7 +91,7 @@
     "sass-loader": "^8.0.2",
     "sassdoc": "^2.7.1",
     "sassdoc-theme-default": "^2.8.3",
-    "semver": "^7.1.2",
+    "semver": "^6.3.1",
     "shelljs": "^0.8.4",
     "string-replace-loader": "^2.2.0",
     "style-loader": "^1.1.3",
diff --git a/scripts/package.json b/scripts/package.json
index 2f17be0df6..32c30838b1 100644
--- a/scripts/package.json
+++ b/scripts/package.json
@@ -18,6 +18,6 @@
     "node-fetch": "^2.3.0",
     "now": "latest",
     "querystring": "^0.2.0",
-    "semver": "^7.1.2"
+    "semver": "^6.3.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 4757d26017..ea627b4387 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -16139,19 +16139,12 @@ semver@7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.0.0.tgz#5f3ca35761e47e05b206c6daff2cf814f0316b8e"
 
-semver@^6.0.0, semver@^6.1.1, semver@^6.1.2, semver@^6.2.0, semver@^6.3.0:
-  version "6.3.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
-
-semver@^7.0.0, semver@^7.1.1:
-  version "7.1.1"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-7.1.1.tgz#29104598a197d6cbe4733eeecbe968f7b43a9667"
-
-semver@^7.1.2:
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-7.1.2.tgz#847bae5bce68c5d08889824f02667199b70e3d87"
+semver@^6.0.0, semver@^6.1.1, semver@^6.1.2, semver@^6.2.0, semver@^6.3.0, semver@^6.3.1:
+  version "6.3.1"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.1.tgz#556d2ef8689146e46dcea4bfdd095f3434dffcb4"
+  integrity sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==
 
-semver@^7.1.3, semver@^7.3.2, semver@^7.3.4:
+semver@^7.0.0, semver@^7.1.1, semver@^7.1.3, semver@^7.3.2, semver@^7.3.4:
   version "7.3.4"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.4.tgz#27aaa7d2e4ca76452f98d3add093a72c943edc97"
   integrity sha512-tCfb2WLjqFAtXn4KEdxIhalnRtoKFN7nAwj0B3ZXCbQloV2tq5eDbcTmT68JJD3nRJq24/XgxtQKFIpQdtvmVw==