diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 511d9596fa..f35a70d8f9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -62,16 +62,18 @@ jobs:
         run: |
           CONTAINER_TAG=latest
           if [ -n "${{ github.base_ref }}" ]; then
-            if echo "${{ github.base_ref }}" | grep -q -E 'openwrt-[0-9][0-9]\.[0-9][0-9]'; then
+            if echo "${{ github.base_ref }}" | grep -q -E '^openwrt-[0-9][0-9]\.[0-9][0-9]$'; then
               CONTAINER_TAG="${{ github.base_ref }}"
             fi
           elif [ ${{ github.ref_type }} == "branch" ]; then
-            if echo "${{ github.ref_name }}" | grep -q -E 'openwrt-[0-9][0-9]\.[0-9][0-9]-'; then
+            if echo "${{ github.ref_name }}" | grep -q -E '^openwrt-[0-9][0-9]\.[0-9][0-9]$'; then
+              CONTAINER_TAG=${{ github.ref_name }}
+            elif echo "${{ github.ref_name }}" | grep -q -E '^openwrt-[0-9][0-9]\.[0-9][0-9]-'; then
               CONTAINER_TAG="$(echo ${{ github.ref_name }} | sed 's/^\(openwrt-[0-9][0-9]\.[0-9][0-9]\)-.*/\1/')"
             fi
           elif [ ${{ github.ref_type }} == "tag" ]; then
-            if echo "${{ github.ref_name }}" | grep -q -E 'v[0-9][0-9]\.[0-9][0-9]\..+'; then
-              CONTAINER_TAG=openwrt-"$(echo ${{ github.ref_name }} | sed 's/v\([0-9][0-9]\.[0-9][0-9]\)\..\+/\1/')"
+            if echo "${{ github.ref_name }}" | grep -q -E '^v[0-9][0-9]\.[0-9][0-9]\..+'; then
+              CONTAINER_TAG=openwrt-"$(echo ${{ github.ref_name }} | sed 's/^v\([0-9][0-9]\.[0-9][0-9]\)\..\+/\1/')"
             fi
           fi
           echo "Tools container to use tools:$CONTAINER_TAG"
diff --git a/.github/workflows/check-kernel-patches.yml b/.github/workflows/check-kernel-patches.yml
index f01782d5da..e5b619064f 100644
--- a/.github/workflows/check-kernel-patches.yml
+++ b/.github/workflows/check-kernel-patches.yml
@@ -39,16 +39,18 @@ jobs:
         run: |
           CONTAINER_TAG=latest
           if [ -n "${{ github.base_ref }}" ]; then
-            if echo "${{ github.base_ref }}" | grep -q -E 'openwrt-[0-9][0-9]\.[0-9][0-9]'; then
+            if echo "${{ github.base_ref }}" | grep -q -E '^openwrt-[0-9][0-9]\.[0-9][0-9]$'; then
               CONTAINER_TAG="${{ github.base_ref }}"
             fi
           elif [ ${{ github.ref_type }} == "branch" ]; then
-            if echo "${{ github.ref_name }}" | grep -q -E 'openwrt-[0-9][0-9]\.[0-9][0-9]-'; then
+            if echo "${{ github.ref_name }}" | grep -q -E '^openwrt-[0-9][0-9]\.[0-9][0-9]$'; then
+              CONTAINER_TAG=${{ github.ref_name }}
+            elif echo "${{ github.ref_name }}" | grep -q -E '^openwrt-[0-9][0-9]\.[0-9][0-9]-'; then
               CONTAINER_TAG="$(echo ${{ github.ref_name }} | sed 's/^\(openwrt-[0-9][0-9]\.[0-9][0-9]\)-.*/\1/')"
             fi
           elif [ ${{ github.ref_type }} == "tag" ]; then
-            if echo "${{ github.ref_name }}" | grep -q -E 'v[0-9][0-9]\.[0-9][0-9]\..+'; then
-              CONTAINER_TAG=openwrt-"$(echo ${{ github.ref_name }} | sed 's/v\([0-9][0-9]\.[0-9][0-9]\)\..\+/\1/')"
+            if echo "${{ github.ref_name }}" | grep -q -E '^v[0-9][0-9]\.[0-9][0-9]\..+'; then
+              CONTAINER_TAG=openwrt-"$(echo ${{ github.ref_name }} | sed 's/^v\([0-9][0-9]\.[0-9][0-9]\)\..\+/\1/')"
             fi
           fi
           echo "Tools container to use tools:$CONTAINER_TAG"