diff --git a/.github/workflows/NightlyRelease.yml b/.github/workflows/NightlyRelease.yml
index a9a1c60..de2ae75 100644
--- a/.github/workflows/NightlyRelease.yml
+++ b/.github/workflows/NightlyRelease.yml
@@ -285,7 +285,7 @@ jobs:
             if [[ -n "${assetFilenames[$asset]}" ]]; then
               printf "%s\n" "${ANSI_LIGHT_RED}[ERROR]${ANSI_NOCOLOR}"
               printf "%s\n" "::error title=DuplicateAsset::Asset '${asset}' from artifact '${artifact}' was already uploaded to release '${{ inputs.nightly_name }}'."
-              ERRORS=1
+              ERRORS=$((ERRORS + 1))
               continue
             else
               printf "%s\n" "${ANSI_LIGHT_GREEN}[OK]${ANSI_NOCOLOR}"
@@ -305,7 +305,7 @@ jobs:
                 printf "%s\n" "${ANSI_LIGHT_RED}[ERROR]${ANSI_NOCOLOR}"
                 printf "      %s\n" "${ANSI_LIGHT_RED}Couldn't download artifact '${artifact}'.${ANSI_NOCOLOR}"
                 printf "%s\n" "::error title=ArtifactNotFound::Couldn't download artifact '${artifact}'."
-                ERRORS=1
+                ERRORS=$((ERRORS + 1))
                 continue
               fi
               downloadedArtifacts[$artifact]=1
@@ -357,7 +357,7 @@ jobs:
                 printf "    %s\n" "Compression ${ANSI_LIGHT_RED}[ERROR]${ANSI_NOCOLOR}"
                 printf "      %s\n" "${ANSI_LIGHT_RED}Couldn't compress '${artifact}' to zip file '${asset}'.${ANSI_NOCOLOR}"
                 printf "%s\n" "::error title=CompressionError::Couldn't compress '${artifact}' to zip file '${asset}'."
-                ERRORS=1
+                ERRORS=$((ERRORS + 1))
                 continue
               fi
             elif [[ "${asset}" == !*.tgz || "${asset}" == !*.tar.gz || "${asset}" == \$*.tgz || "${asset}" == \$*.tar.gz ]]; then
@@ -386,7 +386,7 @@ jobs:
                 printf "    %s\n" "Compression ${ANSI_LIGHT_RED}[ERROR]${ANSI_NOCOLOR}"
                 printf "      %s\n" "${ANSI_LIGHT_RED}Couldn't compress '${artifact}' to tgz file '${asset}'.${ANSI_NOCOLOR}"
                 printf "%s\n" "::error title=CompressionError::Couldn't compress '${artifact}' to tgz file '${asset}'."
-                ERRORS=1
+                ERRORS=$((ERRORS + 1))
                 continue
               fi
             elif [[ "${asset}" == !*.tzst || "${asset}" == !*.tar.zst || "${asset}" == \$*.tzst || "${asset}" == \$*.tar.zst ]]; then
@@ -415,7 +415,7 @@ jobs:
                 printf "    %s\n" "Compression ${ANSI_LIGHT_RED}[ERROR]${ANSI_NOCOLOR}"
                 printf "      %s\n" "${ANSI_LIGHT_RED}Couldn't compress '${artifact}' to zst file '${asset}'.${ANSI_NOCOLOR}"
                 printf "%s\n" "::error title=CompressionError::Couldn't compress '${artifact}' to zst file '${asset}'."
-                ERRORS=1
+                ERRORS=$((ERRORS + 1))
                 continue
               fi
             elif [[ -e "${artifact}/${asset}" ]]; then
@@ -425,7 +425,7 @@ jobs:
               printf "%s\n" "${ANSI_LIGHT_RED}[ERROR]${ANSI_NOCOLOR}"
               printf "    %s\n" "${ANSI_LIGHT_RED}Couldn't find asset '${asset}' in artifact '${artifact}'.${ANSI_NOCOLOR}"
               printf "%s\n" "::error title=FileNotFound::Couldn't find asset '${asset}' in artifact '${artifact}'."
-              ERRORS=1
+              ERRORS=$((ERRORS + 1))
               continue
             fi
 
@@ -465,7 +465,7 @@ jobs:
               printf "%s\n" "${ANSI_LIGHT_RED}[ERROR]${ANSI_NOCOLOR}"
               printf "    %s\n" "${ANSI_LIGHT_RED}Couldn't upload asset '${asset}' from '${uploadFile}' to release '${{ inputs.nightly_name }}'.${ANSI_NOCOLOR}"
               printf "%s\n" "::error title=UploadError::Couldn't upload asset '${asset}' from '${uploadFile}' to release '${{ inputs.nightly_name }}'."
-              ERRORS=1
+              ERRORS=$((ERRORS + 1))
               continue
             fi
           done <<<'${{ inputs.assets }}'
@@ -488,7 +488,7 @@ jobs:
               printf "%s\n" "${ANSI_LIGHT_RED}[ERROR]${ANSI_NOCOLOR}"
               printf "    %s\n" "${ANSI_LIGHT_RED}Couldn't upload asset '${{ inputs.inventory-json }}' to release '${{ inputs.nightly_name }}'.${ANSI_NOCOLOR}"
               printf "%s\n" "::error title=UploadError::Couldn't upload asset '${{ inputs.inventory-json }}' to release '${{ inputs.nightly_name }}'."
-              ERRORS=1
+              ERRORS=$((ERRORS + 1))
               continue
             fi
           fi