diff --git a/.rubocop.yml b/.rubocop.yml
index f74e81b851..c01be5379e 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -332,6 +332,9 @@ Style/SpecialGlobalVars:
   Enabled: false
 Style/SelectByRegexp:
   Enabled: false
+Sorbet/TrueSigil:
+  Exclude:
+    - "**/spec/**/*"
 
 # TODO these were temporarily disabled during the Ruby 2.7 -> 3.1 upgrade
 # in order to keep the upgrade diff small, they will be enabled/fixed in
diff --git a/common/.rubocop.yml b/common/.rubocop.yml
index fc2019d46a..b8168698e8 100644
--- a/common/.rubocop.yml
+++ b/common/.rubocop.yml
@@ -1 +1,4 @@
 inherit_from: ../.rubocop.yml
+
+Sorbet/TrueSigil:
+  Enabled: true
diff --git a/git_submodules/.rubocop.yml b/git_submodules/.rubocop.yml
index fc2019d46a..b8168698e8 100644
--- a/git_submodules/.rubocop.yml
+++ b/git_submodules/.rubocop.yml
@@ -1 +1,4 @@
 inherit_from: ../.rubocop.yml
+
+Sorbet/TrueSigil:
+  Enabled: true
diff --git a/swift/.rubocop.yml b/swift/.rubocop.yml
index fc2019d46a..b8168698e8 100644
--- a/swift/.rubocop.yml
+++ b/swift/.rubocop.yml
@@ -1 +1,4 @@
 inherit_from: ../.rubocop.yml
+
+Sorbet/TrueSigil:
+  Enabled: true