diff --git a/.github/workflows/sims.yml b/.github/workflows/sims.yml
index 7ac5c1d0a..248f3456b 100644
--- a/.github/workflows/sims.yml
+++ b/.github/workflows/sims.yml
@@ -54,23 +54,13 @@ jobs:
           go-version: 1.17
       - name: Display go version
         run: go version
-      - uses: technote-space/get-diff-action@v6.0.1
-        with:
-          SUFFIX_FILTER: |
-            **/**.go
-            go.mod
-            go.sum
-          SET_ENV_NAME_INSERTIONS: 1
-          SET_ENV_NAME_LINES: 1
       - uses: actions/cache@v3
         with:
           path: ~/go/bin
           key: ${{ runner.os }}-go-runsim-binary
-        if: env.GIT_DIFF
       - name: test-sim-import-export
         run: |
           make test-sim-import-export
-        if: env.GIT_DIFF
 
   test-sim-after-import:
     runs-on: ubuntu-latest
@@ -83,23 +73,13 @@ jobs:
           go-version: 1.17
       - name: Display go version
         run: go version
-      - uses: technote-space/get-diff-action@v6.0.1
-        with:
-          SUFFIX_FILTER: |
-            **/**.go
-            go.mod
-            go.sum
-          SET_ENV_NAME_INSERTIONS: 1
-          SET_ENV_NAME_LINES: 1
       - uses: actions/cache@v3
         with:
           path: ~/go/bin
           key: ${{ runner.os }}-go-runsim-binary
-        if: env.GIT_DIFF
       - name: test-sim-after-import
         run: |
           make test-sim-after-import
-        if: env.GIT_DIFF
 
   test-sim-multi-seed-short:
     runs-on: ubuntu-latest
@@ -112,20 +92,10 @@ jobs:
           go-version: 1.17
       - name: Display go version
         run: go version
-      - uses: technote-space/get-diff-action@v6.0.1
-        with:
-          SUFFIX_FILTER: |
-            **/**.go
-            go.mod
-            go.sum
-          SET_ENV_NAME_INSERTIONS: 1
-          SET_ENV_NAME_LINES: 1
       - uses: actions/cache@v3
         with:
           path: ~/go/bin
           key: ${{ runner.os }}-go-runsim-binary
-        if: env.GIT_DIFF
       - name: test-sim-multi-seed-short
         run: |
           make test-sim-multi-seed-short
-        if: env.GIT_DIFF