diff --git a/.github/workflows/ci-all-via-ir.yml b/.github/workflows/ci-all-via-ir.yml
index 4bf8a063a..cfad0d155 100644
--- a/.github/workflows/ci-all-via-ir.yml
+++ b/.github/workflows/ci-all-via-ir.yml
@@ -46,6 +46,7 @@ jobs:
             forge test --use 0.8.17 --via-ir
           ) ||
           ( [ "${{ matrix.profile }}" = "via-ir-3" ] &&
+            forge test --use 0.8.31 --via-ir &&
             forge test --use 0.8.30 --via-ir &&
             forge test --use 0.8.29 --via-ir &&
             forge test --use 0.8.28 --via-ir &&
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4e07df422..bc691c3e4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        profile: [post-prague,post-prague-via-ir,solc-past-versions-0,solc-past-versions-1,via-ir,min-solc,min-solc-via-ir,intense]
+        profile: [post-osaka,post-osaka-via-ir,solc-past-versions-0,solc-past-versions-1,via-ir,min-solc,min-solc-via-ir,intense]
     steps:
       - uses: actions/checkout@v5
       - name: Install Foundry Stable
@@ -27,13 +27,13 @@ jobs:
         run: forge install
       - name: Run Tests with ${{ matrix.profile }}
         run: >
-          ( [ "${{ matrix.profile }}" = "post-prague" ] &&
-            FOUNDRY_PROFILE=post_prague forge test --use 0.8.30 &&
-            FOUNDRY_PROFILE=zksync forge test --use 0.8.30
+          ( [ "${{ matrix.profile }}" = "post-osaka" ] &&
+            FOUNDRY_PROFILE=post_osaka forge test --use 0.8.31 &&
+            FOUNDRY_PROFILE=zksync forge test --use 0.8.31
           ) ||
-          ( [ "${{ matrix.profile }}" = "post-prague-via-ir" ] &&
-            FOUNDRY_PROFILE=post_prague forge test --use 0.8.30 --via-ir &&
-            FOUNDRY_PROFILE=zksync forge test --use 0.8.30 --via-ir
+          ( [ "${{ matrix.profile }}" = "post-osaka-via-ir" ] &&
+            FOUNDRY_PROFILE=post_osaka forge test --use 0.8.31 --via-ir &&
+            FOUNDRY_PROFILE=zksync forge test --use 0.8.31 --via-ir
           ) ||
           ( [ "${{ matrix.profile }}" = "solc-past-versions-0" ] &&
             FOUNDRY_PROFILE=pre_global_structs forge test --use 0.8.5 --fuzz-runs 16 &&
@@ -62,7 +62,8 @@ jobs:
             forge test --use 0.8.26 --fuzz-runs 16 &&
             forge test --use 0.8.27 --fuzz-runs 16 &&
             forge test --use 0.8.28 --fuzz-runs 16 &&
-            forge test --use 0.8.29 --fuzz-runs 16
+            forge test --use 0.8.29 --fuzz-runs 16 &&
+            forge test --use 0.8.30 --fuzz-runs 16
 
           ) ||
           ( [ "${{ matrix.profile }}" = "via-ir" ] &&
diff --git a/foundry.toml b/foundry.toml
index 0e9c6acc5..706888272 100644
--- a/foundry.toml
+++ b/foundry.toml
@@ -4,8 +4,8 @@
 
 # The Default Profile
 [profile.default]
-solc_version = "0.8.30"
-evm_version = "paris" # Cancun will be tested in the CI.
+solc_version = "0.8.31"
+evm_version = "paris" # osaka will be tested in the CI.
 auto_detect_solc = false
 optimizer = true
 optimizer_runs = 1_000
@@ -20,8 +20,8 @@ remappings = [
 skip = ["*/g/*", "*/*7702*", "*/*BlockHashLib*", "*/*Transient*", "*/ext/ithaca/*", "*/ext/zksync/*"]
 
 
-[profile.post_prague]
-evm_version = "prague"
+[profile.post_osaka]
+evm_version = "osaka"
 skip = ["*/ext/ithaca/*"]
 
 [profile.zksync]