diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 37bc4176..b012440d 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -37,6 +37,6 @@ certora-test:
     - mv solc-static-linux /usr/bin/solc
     - export PATH=$PATH:/usr/bin/solc/solc-static-linux
   script:
-    - certoraRun specs/harness/StableDebtTokenHarness.sol:StableDebtTokenHarness --solc_args '--optimize' --verify StableDebtTokenHarness:specs/StableDebtToken.spec --settings -assumeUnwindCond,-b=4 --cache StableDebtToken --cloud
-    - certoraRun specs/harness/UserConfigurationHarness.sol --verify UserConfigurationHarness:specs/UserConfiguration.spec --solc_args '--optimize' --settings -useBitVectorTheory --cache UserConfiguration --cloud
-    - certoraRun contracts/protocol/tokenization/VariableDebtToken.sol:VariableDebtToken specs/harness/LendingPoolHarnessForVariableDebtToken.sol --solc_args '--optimize' --link VariableDebtToken:POOL=LendingPoolHarnessForVariableDebtToken --verify VariableDebtToken:specs/VariableDebtToken.spec --settings -assumeUnwindCond,-useNonLinearArithmetic,-b=4 --cache VariableDebtToken --cloud
+    - certoraRun specs/harness/StableDebtTokenHarness.sol:StableDebtTokenHarness --solc_args "['--optimize']" --verify StableDebtTokenHarness:specs/StableDebtToken.spec --settings -assumeUnwindCond,-b=4 --cache StableDebtToken --cloud
+    - certoraRun specs/harness/UserConfigurationHarness.sol --verify UserConfigurationHarness:specs/UserConfiguration.spec --solc_args "['--optimize']" --settings -useBitVectorTheory --cache UserConfiguration --cloud
+    - certoraRun contracts/protocol/tokenization/VariableDebtToken.sol:VariableDebtToken specs/harness/LendingPoolHarnessForVariableDebtToken.sol --solc_args "['--optimize']" --link VariableDebtToken:POOL=LendingPoolHarnessForVariableDebtToken --verify VariableDebtToken:specs/VariableDebtToken.spec --settings -assumeUnwindCond,-useNonLinearArithmetic,-b=4 --cache VariableDebtToken --cloud